Power head throwing soil speed 70 to /min, quick rotation, check the operation"
"Power head medium speed adaptive inspection operation" Chaoyang Hongda Machinery Co., Ltd.
"Power head, large torque test, operation""......
With the verification of each test project, the industrial test of the new rotary drilling machine power head will be completed soon.
"Noise monitoring 70 dB" building materials industry
"Deceleration casing temperature 60 degrees.""
The motor shell has a temperature of 70 degrees"
"Drilling efficiency has been increased by 10%.""...... Wood-based panel industry
Running continuously for 50 hours, with the data in real-time transmission to the hands of the general designer, the chief designer finally showed his long lost smile.
The rotary drilling rig power head is the key component of drilling rig, improve the power head for different geological adaptability will greatly enhance the scope of application of rotary drilling rig, requires a broad range of speed and torque, low noise and high reliability at the same time." Very early, Zhu Jianxin, director of the Institute of intelligent underground engineering, put forward the idea.
At present, the rotary power head in the market basically adopts the configuration of the ordinary two stage reducer + axial piston high speed motor. Its speed range is narrow, the maximum / minimum speed ratio is 2.6 to 3 times, and it is affected by the maximum speed limit of the axial motor. The fastest rotating speed is less than 35 rpm, the adaptability is narrow, and the drilling bucket is difficult to throw soil. When the high speed soil throwing function is needed, the third motor or the two gear switching reducer is added, and the mechanism and the operation increase the complexity. Machine building
After comparing many schemes, and rotary drilling rig power head selected large displacement motor and a speed reducer, electric motor directly through the program control variable reaches stepless change from low speed to high speed and small torque and large torque drilling throwing soil, the power head has the following characteristics:
1, environmental protection: new power head noise reduction, noise more than 10 decibels;
2, variable speed range: achieved power head speed from 6 to 75rpm stepless speed control;
3, long service life: reducer speed from 4500rpm to 2000rpm, greatly improved the service life of reducer;
4, control simple: direct control power head motor displacement, realize the power head speed change.
The success of the new driving power head of sunward rotary drilling machine is a revolutionary innovation of the driving force of rotary drilling machine, which will lead the future direction of rotary drilling power head.
