Impact hydraulic rock drill
A hydraulic rock drill and percussion technology, which is applied in the direction of drilling equipment, earthwork drilling, rotary combined drilling, etc., can solve the problems of impact stroke change, damage to gears and bearing parts, low drilling efficiency, etc., and achieve reduction Probability of damage, extended service life, and high chiseling efficiency
Active Publication Date: 2016-09-28
HENR TECH GUANGXI CO LTD
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The working principle of the hydraulic rock drill is to use the hydraulic pressure difference to push the piston to perform high-speed reciprocating motion in the cylinder to impact the drill rod. The exciting force generated by the rotation of the hydraulic motor and the eccentric block on the upper part drives the impact hammer head on the exciting box to impact the drill tail. Although this structure is equipped with a buffer spring on the sliding guide post of the exciting box, the impact The rebound force of the hammer head impacting the shank still has a great impact on the vibration excitation box, which may easily cause damage to the gears, bearings and other parts on the vibration excitation box, and affect the amplitude of the vibration excitation box, resulting in changes in the impact stroke
In addition, the patent No. ZL201010596120.4 "A Percussive Hydraulic Rock Drill" has a short and thick structure because the impact hammer head is set at the lower part of the vibration box. From the impact shock wave theory and experience, the injection waveform is relatively steep, and the drilling less efficient
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0015] Such as figure 1 , figure 2 As shown, the impact hydraulic rock drill of the present invention includes an impact mechanism at the top, a rotating mechanism at the middle, and a flushing mechanism at the bottom. The impact mechanism includes an excitation box 8, an impact hydraulic motor 6, a piston rod 4 and The air spring 3, the upper surface and the lower surface of the excitation box 8 are provided with an excitation box mounting seat 5 with a longitudinal through hole, and the middle part of the excitation box 8 is horizontally provided with two mutually parallel eccentric shafts 19, Both eccentric shafts 19 are provided with eccentric blocks 20 and transmission gears 7, and the transmission gears 7 on the two eccentric shafts 19 mesh with each other, and one of the eccentric shafts 19 is connected to the output shaft of the impact hydra...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an impact hydraulic rock drill, comprising an impact mechanism at the upper part, a rotating mechanism at the middle and a flushing mechanism at the lower part. The impact mechanism includes an excitation box, an impact hydraulic motor, a piston rod and an air spring. The rotating mechanism includes a rotating box, a rotating hydraulic motor, and a driving gear, an intermediate gear, a driven gear and a drill rod arranged in the rotating cabinet. Below the rotating box body, the ventilation or water channel of the flushing mechanism communicates with the air guide hole of the drill rod. The invention has a small impact rebound force on the vibration excitation box, avoids damage to parts such as gears and bearings, affects the vibration amplitude of the vibration excitation box, and has high drilling efficiency.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an impact hydraulic rock drill. Background technique [0002] Hydraulic rock drill is a kind of rock drill developed on the basis of pneumatic rock drill. Compared with pneumatic rock drill, hydraulic rock drill has the following advantages: (1) less power consumption and high energy utilization rate. Since the working pressure of high-pressure oil can reach 25MPa, it is It is more than 10 times that of the pneumatic rock drill, and its energy utilization rate can reach 30%~40%, while that of the pneumatic rock drill is only 10%. The drilling speed is about 2.5-3 times that of the pneumatic rock drill; (3) the working conditions are good, the hydraulic rock drill has no exhaust noise and no air pollution caused by oil mist, which improves the working environment; (4) the moving parts of the hydraulic rock drill are in the oil (5) Easy to operate and strong adaptabi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B6/00E21B6/04
Inventor 唐忠盛
Owner HENR TECH GUANGXI CO LTD