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Comparison of the advantages and construction efficiency of full hydraulic impact reverse circulation drilling machine
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作者:xingdacheng190221
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发布时间 :2018-05-25
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329 次浏览:
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Ycjf-20 full hydraulic percussion counter-circulation drilling machine is a large-caliber full hydraulic percussion counter-circulation drilling machine developed by our factory, which is mainly applicable to the construction of large-caliber bored piles in deep foundation engineering.
I. features of ycjf-20 type full hydraulic impact reverse circulation drilling rig:
1. The drilling rig is fully hydraulic driven, with unique hydraulic cylinder impact mode, stable transmission, low noise, low power consumption, and good overload protection.
2, the drilling machine, hydraulic, electrical integration, automatic impact and automatic feeding using single-chip microcomputer control, centralized operation, convenient, labor-saving, safe and reliable.Automatic impact mode and manual impact mode can be selected at will, impact stroke and impact frequency can be stepless or graded adjustment, can adapt to a variety of strata construction requirements.
3. The drill has the function of automatic rope releasing and feeding. During the impact process, according to the penetration of the impact drill bit, automatic rope releasing can be carried out in a timely and appropriate amount to give full play to the impact energy of the drill bit and avoid hitting empty hammer, thus effectively improving the drilling efficiency.You can also choose to put the rope manually, and grasp the impact feed flexibly.
4. The unique impact mode of the drill realizes the steady lifting and free fall of the drill bit.High quality drill, high impact power, can adapt to large diameter construction.The main working parts, such as steel wire rope and spring, have long service life, few wearing parts and low cost.
5. The drill is equipped with hydraulic steps, which can be easily shifted on the construction site.The hydraulic gear is mounted on the chassis of the drill and transported with the drill without disassembly.
6. The drill tower is controlled by hydraulic pressure, which is stable, safe and easy to operate.
Ii. Structure of ycjf-20 full hydraulic impact reverse circulation drill
1. Hydraulic power station
Hydraulic power station is mainly composed of motor, main and secondary hydraulic pump, fuel tank, cooler, electric control cabinet, etc.The main pump adopts the variable plunger pump of inclined shaft type to provide pressure oil for the impact mechanism and the main hoist. The oil return filter and oil absorption filter are set in the oil tank to filter impurities in the hydraulic oil.Coolers are used to lower the temperature of hydraulic oil.
2. Operation desk
The operation platform is mainly composed of electric control box and hydraulic valve.The electric cabinet mainly controls the start and close of main pump, auxiliary pump, cooler and tool hoist.Control the switch between manual impact and automatic impact, manual and automatic rope release, and the increase and decrease of the pressure of the auxiliary pump;Under the condition of automatic shock, the direction change of shock cylinder is automatically controlled by single chip microcomputer.In the state of automatic rope release, the main winch is automatically controlled by a single chip microcomputer to release the rope in a timely and appropriate amount;The hydraulic proportional pilot valve in the middle of the operation platform is used to control the main hoist's forward turning, reverse, stop and main and secondary hoist's braking;The hydraulic reversing valve on the right side is used to manually control the reversing of the impact cylinder;The hydraulic directional valve on the left side is used to control the forward, reverse and stop of the auxiliary winch;The hand wheel of the pressure reducing valve on the lower left side is used to control the displacement of the main pump and can be used to change the rotation speed of the main winch or the impact frequency of the oil cylinder.The pressure gauge on the operating table shows the working pressure of the main pump (the main pump discharge and the auxiliary pump when working) and the pilot valve.
3. Main hoist
The main hoist is mainly composed of hydraulic motor, reducer, hoist and brake device. The hoist is double-barrel with differential device, which is used to adjust the tension balance of two impact wire ropes and lift the drill bit.Hydraulic motor can be forward, reverse, by the main pump and vice pump oil supply, the main pump for
Oil is used in the main winch to lift or lower the drill bit, the speed can be stepless adjustment.Auxiliary pump oil for the main winch into the rope or rope, a constant speed.
4. Hydraulic cylinder impact mechanism
Hydraulic cylinder impact mechanism is mainly composed of impact cylinder and impact wheel.Impact oil cylinder is a specially designed oil cylinder, which is used to realize impact drilling by lifting and lowering the drill bit with impact wheel set and steel wire rope.In addition to transferring the pulling force of the oil cylinder to the wire rope, the impact wheel set plays a guiding role in the up-down movement.
5, Drilling tower
The drilling tower is mainly composed of tower cylinder, base, tower body, tower beam, buffer device, crane and other parts.The drilling tower can be erected and leveled by the tower oil cylinder, so that the drilling rig is in the working or transportation state. The buffering device is mainly used to absorb the shock vibration of the impact wheel set and impact steel wireRope guide, crownblock for secondary winch and tool winch.
6, hydraulic walking
The hydraulic step can make the drilling machine move short distance on the same site, and it is more convenient to align the hole.Hydraulic walking mainly consists of iron shoes, beams, roller sets, oil cylinders, hydraulic valve operation.By operating the valve
Control the movement of the oil cylinder so that the drill can move up and down, forward and backward, and left and right.
7, chassis
The chassis is mainly used to install and connect various parts of the drilling machine, and the orifice device is mainly the working platform for installing and disassembling the slag discharge pipe.
8. Auxiliary hoist
The auxiliary hoist is mainly used for lifting or lowering the slag discharge pipe.When the impact drill bit gets stuck in the hole, the secondary winch can be used to lift the impact hammer to impact and vibrate the bit that is stuck, so as to relieve the sticking problem.
Tool hoist tool hoist is used for lifting auxiliary drilling tools and tools on the construction site.
In addition to the above components, the drilling rig is also equipped with impact hammer head, slag discharge pipe, 6BS type sand pump for reverse circulation drilling, 3PNL type mud pump and mud pipeline.
I. features of ycjf-20 type full hydraulic impact reverse circulation drilling rig:
1. The drilling rig is fully hydraulic driven, with unique hydraulic cylinder impact mode, stable transmission, low noise, low power consumption, and good overload protection.
2, the drilling machine, hydraulic, electrical integration, automatic impact and automatic feeding using single-chip microcomputer control, centralized operation, convenient, labor-saving, safe and reliable.Automatic impact mode and manual impact mode can be selected at will, impact stroke and impact frequency can be stepless or graded adjustment, can adapt to a variety of strata construction requirements.
3. The drill has the function of automatic rope releasing and feeding. During the impact process, according to the penetration of the impact drill bit, automatic rope releasing can be carried out in a timely and appropriate amount to give full play to the impact energy of the drill bit and avoid hitting empty hammer, thus effectively improving the drilling efficiency.You can also choose to put the rope manually, and grasp the impact feed flexibly.
4. The unique impact mode of the drill realizes the steady lifting and free fall of the drill bit.High quality drill, high impact power, can adapt to large diameter construction.The main working parts, such as steel wire rope and spring, have long service life, few wearing parts and low cost.
5. The drill is equipped with hydraulic steps, which can be easily shifted on the construction site.The hydraulic gear is mounted on the chassis of the drill and transported with the drill without disassembly.
6. The drill tower is controlled by hydraulic pressure, which is stable, safe and easy to operate.
Ii. Structure of ycjf-20 full hydraulic impact reverse circulation drill
1. Hydraulic power station
Hydraulic power station is mainly composed of motor, main and secondary hydraulic pump, fuel tank, cooler, electric control cabinet, etc.The main pump adopts the variable plunger pump of inclined shaft type to provide pressure oil for the impact mechanism and the main hoist. The oil return filter and oil absorption filter are set in the oil tank to filter impurities in the hydraulic oil.Coolers are used to lower the temperature of hydraulic oil.
2. Operation desk
The operation platform is mainly composed of electric control box and hydraulic valve.The electric cabinet mainly controls the start and close of main pump, auxiliary pump, cooler and tool hoist.Control the switch between manual impact and automatic impact, manual and automatic rope release, and the increase and decrease of the pressure of the auxiliary pump;Under the condition of automatic shock, the direction change of shock cylinder is automatically controlled by single chip microcomputer.In the state of automatic rope release, the main winch is automatically controlled by a single chip microcomputer to release the rope in a timely and appropriate amount;The hydraulic proportional pilot valve in the middle of the operation platform is used to control the main hoist's forward turning, reverse, stop and main and secondary hoist's braking;The hydraulic reversing valve on the right side is used to manually control the reversing of the impact cylinder;The hydraulic directional valve on the left side is used to control the forward, reverse and stop of the auxiliary winch;The hand wheel of the pressure reducing valve on the lower left side is used to control the displacement of the main pump and can be used to change the rotation speed of the main winch or the impact frequency of the oil cylinder.The pressure gauge on the operating table shows the working pressure of the main pump (the main pump discharge and the auxiliary pump when working) and the pilot valve.
3. Main hoist
The main hoist is mainly composed of hydraulic motor, reducer, hoist and brake device. The hoist is double-barrel with differential device, which is used to adjust the tension balance of two impact wire ropes and lift the drill bit.Hydraulic motor can be forward, reverse, by the main pump and vice pump oil supply, the main pump for
Oil is used in the main winch to lift or lower the drill bit, the speed can be stepless adjustment.Auxiliary pump oil for the main winch into the rope or rope, a constant speed.
4. Hydraulic cylinder impact mechanism
Hydraulic cylinder impact mechanism is mainly composed of impact cylinder and impact wheel.Impact oil cylinder is a specially designed oil cylinder, which is used to realize impact drilling by lifting and lowering the drill bit with impact wheel set and steel wire rope.In addition to transferring the pulling force of the oil cylinder to the wire rope, the impact wheel set plays a guiding role in the up-down movement.
5, Drilling tower
The drilling tower is mainly composed of tower cylinder, base, tower body, tower beam, buffer device, crane and other parts.The drilling tower can be erected and leveled by the tower oil cylinder, so that the drilling rig is in the working or transportation state. The buffering device is mainly used to absorb the shock vibration of the impact wheel set and impact steel wireRope guide, crownblock for secondary winch and tool winch.
6, hydraulic walking
The hydraulic step can make the drilling machine move short distance on the same site, and it is more convenient to align the hole.Hydraulic walking mainly consists of iron shoes, beams, roller sets, oil cylinders, hydraulic valve operation.By operating the valve
Control the movement of the oil cylinder so that the drill can move up and down, forward and backward, and left and right.
7, chassis
The chassis is mainly used to install and connect various parts of the drilling machine, and the orifice device is mainly the working platform for installing and disassembling the slag discharge pipe.
8. Auxiliary hoist
The auxiliary hoist is mainly used for lifting or lowering the slag discharge pipe.When the impact drill bit gets stuck in the hole, the secondary winch can be used to lift the impact hammer to impact and vibrate the bit that is stuck, so as to relieve the sticking problem.
Tool hoist tool hoist is used for lifting auxiliary drilling tools and tools on the construction site.
In addition to the above components, the drilling rig is also equipped with impact hammer head, slag discharge pipe, 6BS type sand pump for reverse circulation drilling, 3PNL type mud pump and mud pipeline.
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