Drawing pile drum slewing bearing selection and use
The pushing machine is to utilize vibration, static or hammering action to pull the pile of the formation of the formation of the formation of the formation. The pilot operation is often used to vibrate pile driver, static pressure pile machine or double-active hammer, and then equipped with pile frame and rigging, so it is also known as vibration sinking pile machine and static press pile machine. The use of swinging on the pile driver is or is the power element of the upper body and the underwriting body to perform the relative swivel movement, then how specifically uses it? Let’s introduce you to you.
1. Selection of pile drum rotation support
The pile drum rotation supports the rotation of the device through friction and lubrication, and can drive the mechanical rotation in the pile drum, provide support capabilities, mainly rotating, supported, to withstand axial, radial, tip, and impact Loads, since the quality requirements of the rotary support are relatively high, and the two-volleyball-type rotary support is generally selected when selecting the rotary support type, which is fastened to withstand a large axial force and torrent torque.
Pumped pile driver
2, method of use of pile driver rotary support
Pumped pile drivers are rotated similar to the use of pile drivers and excavators, and the rotary support is a force element that is on the vehicle body and the underwriter to support the vehicle body and to withstand the working load. The inner seat is connected to the vehicle body, the outer race is connected to the vehicle body, and the inner ring on the inner seat is engaged with the rotary motor pinion. When the rotary motor is rotated, the carriage is driven by the pinion. The rotary support of the pile driver uses an internal teeth rotation, because there is a hit load, and the general tooth surface is hardened.
When the pile driver is more common in the construction, the pile of the pile is fixed to the pile head, and the pile driver is suspended in the hook by the spring absorbers and rigging. Causes pile and soil resonance, soil structure damage, the friction between the pile body and the soil is reduced, and the pendulum is tightened, and the pile is gradually pulled out. If the eccentric block vibrator is used, the eccentric block must be adjusted due to the difference in the resistance between the sink and the pile. Such pulling pile equipment is simple, high-pull pile efficiency, and development prospects.
Hydraulic pile driver uses its clipper to clamping the pile head, the hydraulic cylinder forces the top pressure clipper, so that the top is rising from a distance, pull the piles, and apply the pile to the clay, sand or the soil Copstanding paper or steel piles in the layer. There is also a mechanical method to pull the pile, that is, driven the hoist by the motor, and pulls the pile to force the floor using the tension of the wire rope pulley. It is convenient to use, low cost, but the pile strength is not large, the equipment is cumbersome, and the push pile is low, only for soft land layer construction. Using the double-acting steam hammer, the hammer is inverted, fixed to the pile head, and hang it under the rigging, first shake the soil, reduce the tightness of the pile and soil, then start the steam hammer, hammer up Vibration, tightening the rigging, gradually pulling the piles, can be pulled with concrete piles and other piles in various soil layers.
In general, the pushing machine is a large mechanical equipment, like the excavator crane, which produces a large working load and friction during the rotation, and the ordinary bearings cannot meet the needs of large-scale mechanical equipment, so it needs to be used. Go to the rotary support, and to customize according to the actual situation when selecting the model, a special process can be performed on some wear, and the quality of the rotary support is increased.