The boring rigs are composed of rotating equipment, propulsion mechanism, delivery mechanism and hydraulic and electrical control systems. The structure and shape are shown in Figure 1 and Figure 2, respectively.
Figure 1 shows the up-drilling method of the rig rig
Figure 2 Patio drill rig
1—rotating mechanism; 2—propulsion cylinder; 3—machine addition; 4—tilting cylinder;
5―frame; 6-chuck; 7-drill rod loader
First, the machine head
That is, the rotating mechanism 1 of the drilling machine is mainly composed of an electric motor, a speed reducer or a hydraulic pump, a hydraulic motor and the like. The motor-driven drilling rig is easy to process and repair, but the external dimensions are large, the weight is heavy, and the speed can not be adjusted. The drilling machine with hydraulic motor transmission has small size and light weight, and can be steplessly adjusted, but the processing and maintenance requirements are required. Higher.
Second, the promotion agency
Generally, two propulsion cylinders are arranged, which are arranged on both sides of the rotating mechanism on the head. In order to avoid the phenomenon of unsynchronization when the twin cylinders are propelled, there is also a single cylinder propulsion. Since the propulsion cylinder is connected to the head, the head can move up and down as the cylinder expands and contracts.
Third, the rack 3
It is a track that moves up and down the head, and has two types of circular ducts and slotted rails. When the rig is working, it is guided by the frame, pushes and pulls the machine head through the propulsion cylinder, and drives the drill pipe and the drill bit to drill. The frame is hinged to the frame, and the angle of the frame can be adjusted by the diagonal cylinder 4 and fixed by a positioning screw. The positioning screw can also be used to fine-tune the angle of the frame.
Fourth, the base 5
It is the basis of the rig. Its upper part is connected to the propulsion cylinder 2 and the frame 3, and the lower part is fixed to the concrete foundation by anchor bolts.
Five, chuck 6
It is a device that connects the drill pipe to the nose to transmit torque and axial propulsion.
Six, drill pipe loader 7
It is a device for automatic upper and lower drill pipe.
Sliding Bearing
Sliding Bearing has characteristics as following:
1.finite-fatigue life subject to wide fluctuations.
2.larger space required in the radial direction.
3.low damping capacity.4.higher noise level.
5.more severe alignment requirements.
6.higher cost.
Sliding Bearing
Sliding Bearing,Sphecial Sliding Bearing,Maintence-Free Sliding Bearing
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