ã€China Deep Hole Rig Trading Network】 The Cfg30 deep hole long spiral drilling machine consists of two parts: a hydraulic walking pile frame and a drilling system. The pile frame is mainly composed of a column, a diagonal bracing, a lifting device, a chassis, a traveling mechanism, a turning mechanism, a hoisting mechanism, a control room, a hydraulic system and an electric system. The drilling system consists of power heads, drill tools, and fixed brackets. 1. The column is made of Φ820 steel pipe and welded flange plate with the top pulley at the top. Through it, the hoist can realize the lifting and lowering actions of the power head, reinforcement cage and other auxiliary equipment. The track is equipped with a gauge track 600 in front of the column, which is the guiding and supporting device of the drilling system. 2. Braced braces The braces are hinged to the uprights and the platform, and the lower part contains the cylinders, which are used to assist the erection and adjust the verticality of the uprights. 3. Walking mechanism The mechanism uses a hydraulic step to perform the walking mechanism and achieves a step distance of 2m per step through the walking cylinder. When the pile driver needs to be displaced, the reversing valve is operated so that the four outrigger cylinders extend out of the ground and the pile driver is lifted up. The track of the ship type leaves the ground. At this time, the directional valve operating cylinder is operated, and the traveling cylinder pushes the ship track. go ahead. Then, the outrigger cylinder is retracted, the ship's track is grounded, and the directional valve is operated to connect the oil cylinders, and the oil cylinder pushes the pile driver to roll forward on the ship track. The walking mechanism is used in conjunction with the slewing mechanism so that the rig can walk in all directions from front to back and from side to side. 4. Slewing mechanism The pile machine rotary mechanism is composed of a drive mechanism and a slewing bearing. The drive adopts a plunger motor. Through a planetary reducer, the pinion gear drives the slewing bearing gear to realize the 360-degree rotation of the pile driver. The hydraulic motor is adopted. Drive, smooth rotation without impact, improve the stability and life of the whole machine, improve the construction efficiency. When the pile driver needs to rotate, the piston rod of the traveling cylinder is fully retracted, and the commutation valve is operated by the slewing motor, and the pile driver can perform 360-degree rotation. 5, the hydraulic system The machine moves through the hydraulic system to operate and control. All departments are stable, safe, reliable, and easy to operate. The main pump motor drives an inclined shaft type plunger pump to provide power to the power head, and the auxiliary pump motor drives another inclined shaft type piston pump to provide power for the main hoisting, pressure hoisting, turning, walking, and supporting legs. 6. Hoisting mechanism The hoisting mechanism of the machine includes a 10 ton main winch and an 8 ton pressurized winch. The winch is driven by a hydraulic motor. The joystick is located in the cab and is easy to operate and saves labor. The 10-ton main hoist is used to lift the frame and the power head, and 8 tons of pressurizing winch is used to apply a downward pressure to the power head while drilling to increase the drilling efficiency. 7. Power head The power head of this machine is driven by two hydraulic motors. The power head can adapt to changes in the formation, adjust the speed of the drill pipe according to different geological conditions, and improve work efficiency. The input flange is connected with a coupling plate, a screw rod, and a drill bit in order to perform a drilling operation. The super-flow rotary joint and grouting device can be equipped on the power head of the machine to meet the requirements of construction technology such as super-flow ramming construction and high-pressure grouting. Control mechanism The control room is located in front of the main winch at the back of the drill rig. The iron shell structure and windows on three sides can ensure the open vision and safety and comfort. The drilling rig is controlled by an electrohydraulic joint. All the control buttons and handles are placed on the control panel in front of the control room. The operation is quick and easy. Piling process Spiral pile driver in place → buried protective tube → drill bit rotates slightly after drilling → drill bit down → drilling is completed, clear hole and determine the depth → into the reinforcement cage and duct → concrete pouring → pull out the protection barrel and clean the pile head Silt backfill and pile. 1, installation and operation method Because this machine is a field construction machine, the working environment is harsh, and transportation is disassembling and transporting parts. Therefore, before installation, check whether the parts are damaged or deformed, and whether the joints are normal and firm, and whether the parts with relative movement are dirty. , hydraulic hose is damaged and so on. There must be more than 25 tons of cranes for installation. (1) Note: (External power line should be no less than 95mm2 cable, generator or transformer capacity is not less than 300KW) a, check the hydraulic piping components and hydraulic tanks. There must be no leakage or damage in any part. After all the outrigger cylinders are extended, check that the oil level in the hydraulic tank must not be less than half the height of the tank. If abnormal noise is found in the pump or a large number of air bubbles are generated in the return pipeline during operation, the motor should be immediately stopped to the hydraulic tank. Fill the appropriate amount of hydraulic oil (46# anti-wear hydraulic oil). b. The electrical system has a phase sequence controller. If it is found that the motor cannot be started after the power is connected, check whether the phase sequence is wrong. The motor start sequence is to start the auxiliary pump motor first before the main pump motor can be started. Do not start or stop the motor frequently. c. Check whether the lubrication parts are fully filled with grease. d. Slowly push and slow down when manipulating the handle. Do not shork and jerk to reduce the shock when the hydraulic valve changes direction. (2) Mounting device installation method: a. Turn on the power, start the auxiliary pump motor, operate the outrigger cylinder to lift the machine chassis from the ground, and turn the H beam to the installation side beam position. b. Use the auxiliary crane to securely connect the two side beams to the H beam with bolts. Then the ship track, the lifting device, and the column base are installed on the chassis in turn. c. Connect each section of the column to the base of the column at the front of the chassis. Pay attention to grease on the slide. d. According to the wire rope winding method shown in Fig. 3, the main hoisting machine is connected with the pulley assembly of the starting device, and the starting wire rope is connected with the starting device and fixed. e. Use a drill wire rope to move the moving pulley through the top of the column and the hanging wheel of the power head to fix it. The moving pulley is placed on the column. Note that the power head is temporarily not connected. The small hoisting rope is fixed with the rope clamp by the transition pulley and the lifting rope. f. Connect the braces well. Note that the threaded flange bolts are not installed. Then the top of the braces is connected with the uprights and the lower part is placed on the uprights. g. Hang the weight on the end of the chassis. At this point, the whole installation process is over and it is in the state of starting (3) Starting operation method: A. Operate the main hoist, pull up the column to 75-80 degrees, and connect the bottom bracket hose to the quick connector on the chassis. B. Operate the ramp cylinder reversing valve to extend the cylinder (note that the guide tube cordon should not exceed). Correct the position of the pin on the bottom of the diagonal bracing and the chassis, fix it with the pin, and stop the main hoist. C. Simultaneously operate the two diversion cylinder reversing valves. The cylinder contraction will pull the column upright. If the column is not vertical, the ramp cylinder can be individually operated to adjust the vertical column. E. Adjust the lower threaded flange of the strut and connect it with the upper flange with a bolt. F, operating the main hoist, the wire rope retracted, and then according to the wire rope winding method shown in the figure, the wire rope is fixed on the chassis by the fixed pulley block and the movable pulley block to be fixed. At this point, the entire starting work is over. (4) Installation of drilling system: A. Pressurizing the hoisting and take-up rope to pull down the power head suspension wheel (in this process, the main hoisting and releasing wire rope should be operated), and connect the power head with the pin. B. Lift the power head close to the column and install the guide chute. Connect the hydraulic hose as required. When using the super flow method, connect the hose and the swivel joint. C. Lift the power head, install the coupling plate (the bolt is the high-strength bolt), connect the drill pipe to one or two sections, then install the sliding bracket, install the remaining drill pipe, and install the drill. D. The opening and closing fixing bracket and the chassis are bolted and fixed. E. Check the rotation direction of the power head (positive rotation), and enter the working state correctly. Disassembly and hauling of the pile frame is the opposite of the above operation. 2, drill into the hole method: The long spiral drilling machine hole forming process flow is as follows: The pile driver is in place—correction of the pile position—starting the power head—drilling—stopping the drill—raising the drill—checking the quality of the hole. Observe the dashboard pressure pressure warning light at any time during drilling to prevent sticking. After the installation work is completed, start the drilling rig in place, align the drill bit with the pile position, and then check the verticality of the vertical side of the pile driver column, start the power head to drive the auger drill rod and drill bit, rotate the spiral blade to take the soil down, and be cut. Rocks rotate along with the drill bit and follow the blade up to the automatic output hole. In the drilling process, the intermittent drilling method is generally adopted, namely the drilling-stopping-drilling footage method. As the depth of drilling increases, or in the presence of a clay layer, etc., the drill string can be raised to allow the soil on the blade to be thrown out and then drilled down. After the design depth is reached, the drill is rotated for another 30-60 seconds. Rod, check the virtual soil in the hole, if there is too much virtual soil, you can drill again to bring out the virtual soil as far as possible so that the virtual soil meets the design requirements. The drilling speed of the auger drilling machine depends on the pressure hoist control, and the lift is lifted by the main hoist. maintenance This machine is a field construction machine, working environment is poor, and has a close connection with the personal safety of operators, it should be so that all parts are in normal working condition. This depends on frequent, good maintenance and inspections. Poor maintenance will reduce the capacity and life of the pile driver. Maintenance can refer to the following content. 1. Pile driver reference pile driver maintenance procedures. 2, motor reference motor maintenance procedures. 3, winch, column and guide rails, swing mechanism, walking mechanism, electro-hydraulic control system, etc. should be regularly checked and timely grease (oil) for maintenance, for those who are often worn or impact parts of the wire, cable and tubing should Add protection tube. 4. Hydraulic system: The hydraulic tank should be kept clean. The first time to replace the hydraulic oil is 150h, the second is 300h, and then it is replaced every 1000h. 5, power head maintenance and maintenance (1) The power head is lubricated in the oil pool, and the oil used in 220# is industrial gear oil. The oil level should be over 2/3 of the range of the oil dipstick. Planetary gearbox oil installed above the power head gearbox should periodically check the liquid level, and must be replaced when the oil is dark. When the new power head is used for the first time, the oil must be changed after 1-2 months of operation, and the oil will be changed afterwards depending on the working conditions of 3-6 months. (2) When it is found that the oil temperature rises significantly and exceeds 100°C during the work process, and abnormal vibration and noise phenomena are generated, the use should be stopped, and the cause should be ascertained and used after troubleshooting. (3) During normal maintenance, the disassembled parts should be remembered in order and position, and the inherent shape of the parts should be well protected. After the parts are repaired and installed, the original order and position of the parts should be restored. (4) The use unit should have reasonable maintenance rules and regulations, and implement it in earnest to ensure the normal operation of the power head. (5) The use unit shall make a detailed record of the problems found in the operation and maintenance of the power head. 6. After each construction is completed, the drill sand, drill bit, sliding bracket, and opening-and-closing fixing bracket should be cleaned and the joints should be lubricated. At the same time, the damage and deformation of the components in the disassembly process should be avoided. Bolts, nuts, etc. should remove sediment and remove rust to prepare for the next construction. 7. When the bit wear is less than the basic size 20mm, the bit should be replaced so as not to wear the spiral blade on the spiral drill pipe. Precautions: 1. The construction site should be flat and the slope must not exceed ±2o. 2, the installation of the ground must be solid, can withstand more than 0.3Mpa ground pressure. 3. 25t or more cranes are required to cooperate with the erection and installation. 4. Before the construction, check whether the rotation of each pulley is flexible, whether the wire rope is damaged, and whether the connection parts are firm. 5. Decompression drilling should be performed in case of a hard stratum on the surface to prevent the column from swinging too much. 6. When using the drilling grouting method, lifting the drill must rotate the drill pipe so as to avoid burying the drill, and the maximum pulling force shall not exceed 80t. 7. When the pile driver is working, the chassis is forbidden to walk and rotate when the drilling tool enters the ground. When walking and turning, the legs and ship track must not touch the ground at the same time. 8. When the pile driver stops working, when the wind force is greater than 5, the legs and ship track should be grounded at the same time and fixed with cables. 9. It is forbidden to use the jib to lift heavy objects such as cages. The jib should not pull heavy objects diagonally. 10. Pay attention to the frequent inspection of the abrasion of the Kava nylon bushing of the power head on the slideway. If the abrasion is greater than 5mm, it must be replaced to avoid a major accident. 11. When lifting the drilling tool, pay attention to the bottom of the moving pulley not to exceed the warning line. Application area CFG pile driver is foundation and foundation treatment equipment, suitable for CFG construction method, prefabricated piles, cast-in-situ piles, underground continuous walls, soft foundation reinforcement, etc., especially suitable for pile foundation construction of housing project. The CFG pile driver can also be used as a hole forming device for drilling cast-in-place piles and drilling holes into prefabricated piles. It is widely used in the foundation construction of civil engineering, municipal engineering and building installation engineering. It can meet the needs of foundation construction such as roads, railways, industrial and civil buildings, seaport terminals, and embankments. High-efficiency, no vibration, low energy consumption, low noise, high hole verticality, technical characteristics For more information, please pay attention to the China Deep Hole Rig Trading Network () Garden Tractor,Compact Tractors,Mini Tractor,Yard Tractors Hunan Nongyou Machinery Group CO.,LTD , https://www.harvesterequipment.com