CN114658353A - Novel excavator modified rotary drilling rig, hydraulic control system and control method - Google Patents

Novel excavator modified rotary drilling rig, hydraulic control system and control method Download PDF

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Publication number
CN114658353A
CN114658353A CN202210532854.9A CN202210532854A CN114658353A CN 114658353 A CN114658353 A CN 114658353A CN 202210532854 A CN202210532854 A CN 202210532854A CN 114658353 A CN114658353 A CN 114658353A
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China
Prior art keywords
valve
mast
oil cylinder
auxiliary
main
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Granted
Application number
CN202210532854.9A
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Chinese (zh)
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CN114658353B (en
Inventor
巩尊国
夏运华
沈韬
周贤贤
孙健
张娟
赵国辉
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Changzhou Yuchai Construction Machinery Co ltd
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Changzhou Yuchai Construction Machinery Co ltd
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Priority to CN202210532854.9A priority Critical patent/CN114658353B/en
Publication of CN114658353A publication Critical patent/CN114658353A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/021—With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/42—Control devices non-automatic
    • B66D1/44—Control devices non-automatic pneumatic of hydraulic
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/023—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/31523—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member
    • F15B2211/31547—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and an output member having multiple pressure sources and multiple output members

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to a novel excavator modified rotary drilling rig, a hydraulic control system and a control method. The invention has simple structure, can meet the construction requirements by the standard conventional power head, is convenient and quick to assemble and disassemble the drill rod, can meet the requirements of large-torque drilling and heavy object hoisting, is quick to integrally install and transform, has high construction efficiency, flexible operation and wide operation range, is transported with the drill rod, and meets the requirements of construction under the condition of complex stratum and in narrow and low space.

Description

Novel excavator-modified rotary drilling rig, hydraulic control system and control method
Technical Field
The invention relates to the technical field of rotary drilling rigs, in particular to a novel excavator-modified rotary drilling rig, a hydraulic control system for the novel excavator-modified rotary drilling rig and a control method for the hydraulic control system.
Background
The rotary drilling rig is hole forming equipment applied to the building engineering industry, has the advantages of high construction efficiency, large output torque, high hole forming quality and the like, and is popular with customers. However, the existing professional rotary drilling rig has high cost and low utilization rate; the volume is large, and the construction in narrow and low space can not be met.
The conventional rotary drilling rig modified by a digging machine mainly comprises a chassis, a rotary drilling assembly, an auxiliary assembly for applying drilling force, an angle and distance adjusting assembly, a cab, the chassis, a connecting piece, a connecting head and the like, wherein the rotary drilling assembly needs a special power head and is free of a buffer device, so that the service life is short; the auxiliary winch cannot be installed to hoist heavy objects, and the drill rod needs to be installed inside the mast, so that the drill rod is difficult to assemble and disassemble; the mast has low strength and cannot meet the requirement of large-torque drilling.
In the prior art, CN208518600U discloses a low-profile rotary drilling rig modified from a digging machine, which solves the problem of construction in narrow and low spaces, but due to the structural limitation, the operation range of a drilling bucket is limited, and the drilling bucket cannot meet some specific construction occasions.
Disclosure of Invention
The invention aims to provide a novel excavator modified rotary drilling rig, a hydraulic control system and a control method, the novel excavator modified rotary drilling rig is simple in structure, a standard conventional power head can meet construction requirements and is provided with a buffer device, a drill rod is convenient and quick to assemble and disassemble, large-torque drilling and heavy object hoisting can be met, the whole installation and modification are quick, the construction efficiency is high, the operation is flexible, transportation with the drill rod is achieved, and construction under complex stratum conditions and in narrow and low spaces is met.
The invention is realized by the following technical scheme:
the utility model provides a novel rig is dug soon in excavator transformation system, includes chassis, platform assembly, becomes width of cloth mechanism, hoisting mechanism, mast, unit head, drill rod subassembly and bores the fill, the platform assembly is fixed in on the chassis, become width of cloth mechanism and install on the platform assembly, become width of cloth mechanism and link to each other with the mast, hoisting mechanism installs on the mast and links to each other with the drill rod subassembly, the unit head is installed on the mast and is linked to each other with the drill rod subassembly, it installs in drill rod subassembly bottom to bore the fill, it passes through the carousel subassembly and links to each other with the mast to become width of cloth mechanism.
The luffing mechanism comprises a movable arm, a movable arm oil cylinder and a small arm oil cylinder, wherein the movable arm oil cylinder is connected with the movable arm and can drive the movable arm to rotate, one end of the small arm oil cylinder is rotatably connected with the movable arm, and the other end of the small arm oil cylinder is connected with the turntable assembly and can drive the turntable assembly to rotate.
The special turntable assembly is added on the basis of the original structure, so that the mast can also swing axially, and the drilling range of the drilling bucket is further expanded. Specifically, the rotary table assembly comprises mast oil cylinders, a swing seat, a pair of mast oil cylinders, two mast oil cylinders, a pair of swing arms, a pair of mast oil cylinders and a pair of mast oil cylinders, wherein the mast oil cylinders are fixed on the mast, the disc is rotatably connected with the swing seat, the bottom ends of the swing arms are hinged with the swing arms, the top ends of the mast oil cylinders are respectively connected with the disc through the swing arms, the swing arms are fixed on the disc, and the mast oil cylinders can drive the disc to axially rotate so as to drive the mast to swing.
The hoisting mechanism comprises a main hoist, an auxiliary hoist and a pulley block, wherein the main hoist and the auxiliary hoist are connected with the pulley block; in order to avoid the interference between the swinging of the mast and the winding mechanism, the pulley block is connected with the drill rod assembly through a rotary connector; the top end of the drill rod component is rotatably connected with the bottom end of the rotary connector through a lifting lug.
In order to facilitate installation of the disc and avoid follow-up rotation of the disc, the mast is provided with a groove, and the disc is fixed in the groove through a pressing plate.
In order to facilitate the rotation of the mast oil cylinder, a support is fixed on the mast, the bottom end of the mast oil cylinder is hinged with the support, and the top end of the mast oil cylinder is hinged with the swing rod.
In order to facilitate the power head to lift, a guide rail and a pressurizing oil cylinder are fixed on the mast, the power head is connected with the guide rail in a sliding mode, and the pressurizing oil cylinder is connected with the power head and can drive the power head to lift up and down along the guide rail.
In order to ensure the lifting stability of the drill rod assembly, a follow-up frame is connected to the guide rail in a sliding mode, a rotary bearing is fixed to the follow-up frame, and the drill rod assembly is rotatably connected with the follow-up frame through the rotary bearing.
The invention also provides a hydraulic control system for the novel excavator modified rotary drilling rig, which comprises a main pump, an auxiliary valve, a main valve, an electromagnetic valve group and a left hand valve, wherein the auxiliary valve, the main valve, the electromagnetic valve group and the left hand valve are connected with the main pump and the auxiliary pump, the hydraulic control system comprises a right armrest valve and a foot valve, wherein a P/T oil port of an auxiliary valve is respectively connected with an A1/B1 oil port of a spare valve block of a main valve, the auxiliary valve is provided with a plurality of valve blocks, an A/B oil port of each valve block is respectively connected with a P/T oil port of a pressurizing oil cylinder, an auxiliary hoisting oil cylinder and a P/T oil port of a mast oil cylinder, an A2/B2 oil port of a drilling bucket oil cylinder valve block of the main valve is connected with a P/T oil port of a power head, an A2/B2 oil port of an auxiliary valve block of the main valve is connected with a P/T oil port of a main hoisting oil cylinder, interfaces of a left armrest valve, a right armrest valve and a foot valve are respectively connected with interfaces of an electromagnetic valve group, and an output interface of the electromagnetic valve group, and an interface of the left armrest valve and an interface of the right armrest valve are used for controlling the novel excavator to refit a rotary drilling rig.
The invention also provides a control method for the hydraulic control system, which comprises the following steps:
starting an engine to drive a main pump and an auxiliary pump to rotate, wherein hydraulic oil output by the main pump is distributed to a main valve, the hydraulic oil of the main valve is distributed to each actuating mechanism according to needs, and the hydraulic oil output by the auxiliary pump is distributed to a left armrest valve, a right armrest valve and a foot valve and controls each actuating mechanism to move through an electromagnetic valve group;
operating the left armrest valve, controlling the main valve plate, and enabling hydraulic oil output by the main valve plate to control the boom cylinder to extend so as to enable the boom to reach a proper working position; controlling a right hand valve and a main valve plate, so that hydraulic oil output by the main valve plate controls a small arm oil cylinder to shorten, and a mast is made to reach a front position and a rear position vertical to the ground; the foot valve and the electromagnetic valve group are controlled, so that hydraulic oil output by the auxiliary valve piece respectively controls the left mast oil cylinder and the right mast oil cylinder to stretch, and the masts are perpendicular to the ground left and right; operating the left armrest valve to control the main valve plate, so that hydraulic oil output by the main valve plate drives the power head to rotate, and the power head drives the drill rod assembly and the drill bucket to perform drilling operation; operating the left armrest valve and the electromagnetic valve group to enable the hydraulic oil output by the auxiliary valve piece to control a pressurizing oil cylinder, and pressurizing and drilling the power head by the pressurizing oil cylinder; the drilling bucket is fully drilled, the right hand valve and the electromagnetic valve group are controlled, the main valve plate is controlled, the main winch driven by the output of the main valve plate rotates to lift the drilling bucket, and after the drilling bucket is lifted, the drilling bucket is opened to finish the soil unloading operation;
the operation directions of the left handrail valve, the right handrail valve and the foot valve are opposite to that of the mast erection when the mast is inverted;
and controlling the foot valve and the electromagnetic valve group to enable hydraulic oil output by the auxiliary valve piece to respectively control the left mast oil cylinder and the right mast oil cylinder to stretch and retract so as to enable the masts to incline to one side, and then controlling the right handrail valve and the electromagnetic valve group to enable hydraulic oil output by the auxiliary valve piece to drive the auxiliary winch to rotate so as to complete lifting and lowering of a heavy object.
The beneficial effects of the invention are: the novel excavator modified rotary drilling rig, the hydraulic control system and the control method are simple in structure, the standard conventional power head can meet construction requirements, a drill rod is convenient and quick to assemble and disassemble, high-torque drilling and heavy object hoisting can be met, the whole installation and modification are quick, the construction efficiency is high, the operation is flexible, the operation range is wide, the transportation with the drill rod is realized, and the construction under complex stratum conditions and in narrow and low spaces is met.
Drawings
FIG. 1 is a schematic structural diagram of a rotary drilling rig modified from the novel excavator;
FIG. 2 is a schematic view of the turntable assembly mounting structure of the present invention;
FIG. 3 is a front view of the turntable assembly of the present invention;
FIG. 4 is a side view of the turntable assembly of the present invention;
FIG. 5 is a schematic view of the construction of a mast of the present invention;
FIG. 6 is a partial schematic view of the turntable assembly and mast attachment of the present invention;
FIG. 7 is a schematic view of the mounting structure of the drill rod assembly of the present invention;
FIG. 8 is a schematic diagram of the hydraulic control system of the present invention;
fig. 9 is a schematic structural diagram of the novel excavator when the reverse mast of the rotary drilling rig is reformed.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
As shown in fig. 1, the novel rotary drilling rig modified from the excavator comprises a chassis 1, a platform assembly 2, an amplitude variation mechanism, a hoisting mechanism, a mast 9, a power head 10, a drill rod assembly 11 and a drill bucket 17, wherein the platform assembly 2 is fixed on the chassis 1, the amplitude variation mechanism is installed on the platform assembly 2 and is connected with the mast 9, the hoisting mechanism is installed on the mast 9 and is connected with the drill rod assembly 11, the power head 10 is installed on the mast 9 and is connected with the drill rod assembly 11, the drill bucket 17 is installed at the bottom end of the drill rod assembly 11, and the amplitude variation mechanism is connected with the mast 9 through a turntable assembly 6.
The luffing mechanism comprises a movable arm 3, a movable arm oil cylinder 4 and a small arm oil cylinder 5, the bottom ends of the movable arm 3 and the movable arm oil cylinder 4 are respectively hinged with the platform assembly 2, the top end of the movable arm oil cylinder 4 is hinged with a movable arm oil cylinder support 3-1, the top end of the movable arm 3 is hinged with the bottom end of the turntable assembly 6, the bottom end of the small arm oil cylinder 5 is hinged with the small arm oil cylinder support 3-2, and the top end of the small arm oil cylinder 5 is hinged with the top end of the turntable assembly 6.
Referring to the drawings of FIGS. 2-6, the turntable assembly comprises a mast oil cylinder 7, a swinging seat 6-6, a disc 6-5 and a swinging rod 6-3, a groove 9-4-1 is formed in a mast 9, the disc 6-5 is inserted into the groove 9-4-1 of the mast 9, and the disc 6-5 of the turntable assembly 6 is pressed by a bolt fixing pressing plate 9-5, so that the disc 6-5 and the mast 9 are relatively fixed; the swing seat 6-6 is rotatably connected with the disc 6-5, the bottom end of the swing seat 6-6 is hinged with the telescopic end of the movable arm 3 through a first pin shaft hole 6-1 and a pin shaft, and the top end of the swing seat 6-6 is hinged with the telescopic end of the small arm oil cylinder 5 through a second pin shaft hole 6-2 and a pin shaft; the pair of mast oil cylinders 7 is provided, the bottom ends of the two mast oil cylinders 7 are respectively rotatably connected with the mast 9 through an oil cylinder support 9-1 and an oil cylinder support 9-2, the top ends of the two mast oil cylinders 7 are respectively connected with the swing rods 6-3 through third pin shaft holes 6-4 and pin shafts, the two swing rods 6-3 are fixed on the disc 6-5 and extend towards the left side and the right side of the disc 6-5, and the two mast oil cylinders 7 can drive the disc 6-5 to axially rotate through the swing rods 6-3 so as to drive the mast 9 to integrally swing.
Referring to fig. 1 and 5, the hoisting mechanism comprises a main hoisting 12, an auxiliary hoisting 13 and pulley blocks 9-6, the main hoisting 12 is fixedly connected to the side portion of the mast 9 through bolts, the auxiliary hoisting 13 is fixedly connected to the side portion of the mast 9 through bolts, the pulley blocks 9-6 are welded to the top end of the mast 9, and the pulley blocks 9-6 are connected with the drill rod assembly 11 through rotary connectors 15.
In addition, a guide rail 9-4-2 is welded on the mast 9, a pressure plate assembly of the power head 10 is connected with the guide rail 9-4-2 in a vertical sliding mode, the power head 10 is connected with a cylinder rod end of the pressurizing oil cylinder 8, a cylinder body end of the pressurizing oil cylinder 8 is hinged with a pressurizing oil cylinder seat 9-4-3, and the drill rod assembly 11 penetrates through the center of the power head 10.
Referring to fig. 7, the lifting lug 11-1 of the drill rod assembly 11 is connected to one end of the rotary connector 15 through a pin, and the other end of the rotary connector 15 is connected to a wire rope of the pulley block. The flange plate 11-2 of the drill rod component 11 is fixedly connected with the outer ring of a rotary bearing 16, the bottom end of the drill rod component 11 is connected with a drill bucket 17, the inner ring of the rotary bearing 16 is fixedly connected with a follow-up frame 14, and the follow-up frame 14 is clamped on the guide rail 9-4-2.
The hydraulic control system for the novel excavator-modified rotary drilling rig comprises a main pump 20, an auxiliary pump 21, an auxiliary valve 18, a main valve 19, a solenoid valve group 22, a left handrail valve 23, a right handrail valve 24 and a foot valve 25, wherein the auxiliary valve 18, the main valve 19, the solenoid valve group 22, the left handrail valve 23, the right handrail valve 24 and the foot valve 25 are connected with the main pump 20 and the auxiliary pump 21, a P/T oil port of the auxiliary valve 18 is respectively connected with an A1/B1 oil port of a spare valve plate 19-1 of the main valve 19, the auxiliary valve 18 comprises 4 valve plates (a first auxiliary valve plate 18-1, a second auxiliary valve plate 18-2, a third auxiliary valve plate 18-3 and a fourth auxiliary valve plate 18-4), an A/B oil port of each valve plate is respectively connected with a pressurizing oil cylinder 8, a motor of the auxiliary hoisting oil cylinder 13 and P/T oil ports of two mast oil cylinders 7, and the main valve 19 comprises 5 valve plates (the spare valve plate 19-1, the drill bucket oil cylinder valve plate 19-2, the auxiliary valve plate 19-3, the auxiliary valve plate 19, The hydraulic control system comprises a first main valve plate 19-4 and a second main valve plate 19-5), an A2/B2 oil port of a drilling bucket oil cylinder valve plate 19-2 of a main valve 19 is connected with a P/T oil port of a power head 10 motor, an A2/B2 oil port of an auxiliary valve plate 19-3 of the main valve 19 is connected with a P/T oil port of a main winch 12 motor, an interface 2/4 of a left armrest valve 23 and an interface 2/4 of a right armrest valve 24 are respectively connected with an a/B/c/d of an electromagnetic valve group 22, an interface 1/2/3/4 of a foot valve 25 is respectively connected with an e/f/g/h of the electromagnetic valve group 22, and an output interface of the electromagnetic valve group 22, and interfaces 1-2 of the left armrest valve 23 and the right armrest valve 24 are used for controlling the action of the novel rotary drilling rig modified by the excavator.
The control method of the hydraulic control system comprises the following steps:
starting the engine, driving the main pump 20 and the auxiliary pump 21 to rotate, delivering hydraulic oil from the main pump 20 to the main valve 19, distributing hydraulic oil from the main valve 19 to each actuator as required, delivering hydraulic oil from the auxiliary pump 21 to the left armrest valve 23, the right armrest valve 24 and the foot valve 25, and controlling the movement of each actuator through the solenoid valve set 21.
The method comprises the following steps of:
referring to fig. 9, the left armrest valve 23 is operated to control the first main valve plate 19-4, so that the hydraulic oil output by the first main valve plate 19-4 controls the brake arm cylinder 4 to extend, and the boom 3 is moved to a proper working position. And controlling the right armrest valve 24 and the second main valve plate 19-5, so that hydraulic oil output by the second main valve plate 19-5 controls the forearm cylinder 5 to shorten, and the mast 9 is moved to a position vertical to the ground front and back. The foot valve 25 and the electromagnetic valve group 22 are controlled, so that hydraulic oil output by the third auxiliary valve plate 18-3 and the fourth auxiliary valve plate 18-4 respectively controls the left mast cylinder 7 and the right mast cylinder 7 to stretch and retract, the mast 9 can deflect left and right, and the mast 9 is positioned to be vertical to the ground left and right. The left armrest valve 23 is operated to control the valve plate 19-2 of the drill bucket oil cylinder, so that the hydraulic oil output by the valve plate 19-2 of the drill bucket oil cylinder drives the power head 10 to rotate, and the power head 10 drives the drill rod assembly 11 and the drill bucket 17 to perform drilling operation. The left armrest valve 23 and the electromagnetic valve group 22 are operated, so that the hydraulic oil output by the first auxiliary valve plate 18-1 controls the pressurizing oil cylinder 8, and the pressurizing oil cylinder 8 pressurizes and drills the power head 10. And (3) controlling the right armrest valve 24 and the electromagnetic valve group 22 and controlling the auxiliary valve plate 19-3 when the drill bucket is fully drilled, so that the hydraulic oil output by the auxiliary valve plate 19-3 drives the main winch 12 to rotate and lift the drill bucket, and opening the drill bucket after lifting to finish the soil unloading operation.
A mast inverting operation step:
the left hand valve 23, the right hand valve 24 and the foot valve 25 are operated in the reverse direction when the mast is inverted, as compared with the vertical mast.
And (3) hoisting a heavy object:
the foot valve 25 and the electromagnetic valve group 22 are controlled to enable the hydraulic oil output by the third auxiliary valve plate 18-3 and the fourth auxiliary valve plate 18-4 to respectively control the left mast oil cylinder 7 and the right mast oil cylinder 7 to stretch and retract so as to enable the mast 9 to incline to one side, then the right armrest valve 24 and the electromagnetic valve group 22 are controlled to enable the hydraulic oil output by the second auxiliary valve plate 18-2 to respectively rotate the auxiliary winch 13, and therefore the lifting and the lowering of the heavy object are completed.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (9)

1. The utility model provides a novel rig is dug soon in excavator transformation system, includes chassis, platform assembly, becomes width of cloth mechanism, hoisting mechanism, mast, unit head, drill rod subassembly and bores the fill, the platform assembly is fixed in on the chassis, become width of cloth mechanism and install on the platform assembly, become width of cloth mechanism and link to each other with the mast, hoisting mechanism installs on the mast and links to each other with the drill rod subassembly, the unit head is installed on the mast and links to each other with the drill rod subassembly, it installs in drill rod subassembly bottom, its characterized in that to bore the fill: the amplitude changing mechanism is connected with the mast through the turntable assembly;
the luffing mechanism comprises a movable arm, a movable arm oil cylinder and a small arm oil cylinder, the movable arm oil cylinder is connected with the movable arm and can drive the movable arm to rotate, one end of the small arm oil cylinder is rotatably connected with the movable arm, and the other end of the small arm oil cylinder is connected with the turntable assembly and can drive the turntable assembly to rotate;
the rotary table component comprises mast oil cylinders, swing seats, a pair of mast oil cylinders, two mast oil cylinders and masts, the disc is fixed on the mast, the disc is rotatably connected with the swing seats, the bottom ends of the swing seats are hinged with the movable arm, the top ends of the swing seats are hinged with the forearm oil cylinder, the bottom ends of the two mast oil cylinders are rotatably connected with the mast, the top ends of the two mast oil cylinders are respectively connected with the disc through the swing rods, the swing rods are fixed on the disc, and the mast oil cylinders can drive the disc to axially rotate so as to drive the mast to swing.
2. The novel modified rotary drilling rig of the excavator according to claim 1, characterized in that: the hoisting mechanism comprises a main hoist, an auxiliary hoist and a pulley block, the main hoist and the auxiliary hoist are connected with the pulley block, and the pulley block is connected with the drill rod assembly through a rotary connector.
3. The novel modified rotary drilling rig of the excavator according to claim 2, characterized in that: the mast is fixedly provided with a guide rail and a pressurizing oil cylinder, the power head is connected with the guide rail in a sliding manner, and the pressurizing oil cylinder is connected with the power head and can drive the power head to lift up and down along the guide rail.
4. The novel modified rotary drilling rig of the excavator according to claim 3, wherein: the drill rod assembly is characterized in that a follow-up frame is connected to the guide rail in a sliding mode, a rotary bearing is fixed on the follow-up frame, and the drill rod assembly is rotatably connected with the follow-up frame through the rotary bearing.
5. The novel modified rotary drilling rig of the excavator according to claim 3, wherein: the top end of the drill rod component is rotatably connected with the bottom end of the rotary connector through a lifting lug.
6. The novel modified rotary drilling rig of the excavator according to claim 3, wherein: the mast is provided with a groove, and the disc is fixed in the groove through a pressing plate.
7. The novel modified rotary drilling rig of the excavator according to claim 3, wherein: the mast is fixed with a support, the bottom end of the mast oil cylinder is hinged with the support, and the top end of the mast oil cylinder is hinged with the swing rod.
8. A hydraulic control system for a novel excavator improved rotary drilling rig according to any one of claims 3-7, which is characterized by comprising a main pump, an auxiliary valve, a main valve, an electromagnetic valve group, a left hand valve, a right hand valve and a foot valve, wherein the auxiliary valve, the main valve, the electromagnetic valve group, the left hand valve, the right hand valve and the foot valve are connected with the main pump and the auxiliary pump, a P/T oil port of the auxiliary valve is respectively connected with an A1/B1 oil port of a spare valve plate of the main valve, the auxiliary valve is provided with a plurality of valve plates, an A/B oil port of each valve plate is respectively connected with a P/T oil port of a pressurizing oil cylinder, an auxiliary hoisting cylinder and a P/T oil port of a mast oil cylinder, an A2/B2 oil port of a drilling bucket oil cylinder valve plate of the main valve is connected with a P/T oil port of a power head, an A2/B2 of the auxiliary valve plate of the main valve plate is connected with a P/T oil port of the main hoisting cylinder, interfaces of the left hand valve, the right hand valve and the foot valve group are respectively connected with interfaces of the electromagnetic valve, and the output interface of the electromagnetic valve group, the interfaces of the left hand valve and the right hand valve are used for controlling the novel excavator to transform the rotary drilling rig into a rotary drilling rig.
9. A control method for the hydraulic control system according to claim 8, characterized by comprising the steps of:
starting an engine to drive a main pump and an auxiliary pump to rotate, wherein hydraulic oil output by the main pump is distributed to a main valve, the hydraulic oil of the main valve is distributed to each actuating mechanism according to needs, and the hydraulic oil output by the auxiliary pump is distributed to a left armrest valve, a right armrest valve and a foot valve and controls each actuating mechanism to move through an electromagnetic valve group;
the vertical mast drilling control method comprises the following steps:
operating the left armrest valve, controlling the main valve plate, and enabling hydraulic oil output by the main valve plate to control the boom cylinder to extend so as to enable the boom to reach a proper working position; controlling a right armrest valve and a main valve plate, so that hydraulic oil output by the main valve plate controls a small arm oil cylinder to shorten, and a mast is made to be vertical to the ground front and back; the foot valve and the electromagnetic valve group are controlled, so that hydraulic oil output by the auxiliary valve piece respectively controls the left mast oil cylinder and the right mast oil cylinder to stretch, and the masts are perpendicular to the ground left and right; operating the left armrest valve to control the main valve plate, so that hydraulic oil output by the main valve plate drives the power head to rotate, and the power head drives the drill rod assembly and the drill bucket to perform drilling operation; operating the left armrest valve and the electromagnetic valve group to enable the hydraulic oil output by the auxiliary valve piece to control a pressurizing oil cylinder, and pressurizing and drilling the power head by the pressurizing oil cylinder; the drilling bucket is fully drilled, the right hand valve and the electromagnetic valve group are controlled, the main valve plate is controlled, the main winch driven by the output of the main valve plate rotates to lift the drilling bucket, and after the drilling bucket is lifted, the drilling bucket is opened to finish the soil unloading operation;
the mast collapse control method comprises the following steps:
the operation directions of the left handrail valve, the right handrail valve and the foot valve are opposite to that of the mast erection when the mast is inverted;
the method for controlling the hoisting of the heavy object comprises the following steps:
and controlling the foot valve and the electromagnetic valve group to enable hydraulic oil output by the auxiliary valve piece to respectively control the left mast oil cylinder and the right mast oil cylinder to stretch and retract so as to enable the masts to incline to one side, and then controlling the right handrail valve and the electromagnetic valve group to enable hydraulic oil output by the auxiliary valve piece to drive the auxiliary winch to rotate so as to complete lifting and lowering of a heavy object.
CN202210532854.9A 2022-05-17 2022-05-17 Novel excavator modified rotary drilling rig, hydraulic control system and control method Active CN114658353B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201176871Y (en) * 2007-11-29 2009-01-07 中国地质装备总公司 All-hydraulic type rock core boring machine hydraulic control system
CN201802380U (en) * 2010-07-21 2011-04-20 郑州宇通重工有限公司 Rotary drilling rig full electric control device
CN202370429U (en) * 2011-12-19 2012-08-08 上海金泰工程机械有限公司 Excavator provided with rotary drilling rig
CN111911074A (en) * 2020-09-07 2020-11-10 玉柴桩工(常州)有限公司 Contact telescopic luffing mechanism, hydraulic control system and rotary drilling rig
CN213144372U (en) * 2020-09-24 2021-05-07 招商局重庆交通科研设计院有限公司 Rotary drilling rig

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201176871Y (en) * 2007-11-29 2009-01-07 中国地质装备总公司 All-hydraulic type rock core boring machine hydraulic control system
CN201802380U (en) * 2010-07-21 2011-04-20 郑州宇通重工有限公司 Rotary drilling rig full electric control device
CN202370429U (en) * 2011-12-19 2012-08-08 上海金泰工程机械有限公司 Excavator provided with rotary drilling rig
CN111911074A (en) * 2020-09-07 2020-11-10 玉柴桩工(常州)有限公司 Contact telescopic luffing mechanism, hydraulic control system and rotary drilling rig
CN213144372U (en) * 2020-09-24 2021-05-07 招商局重庆交通科研设计院有限公司 Rotary drilling rig

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