This
series of grinders are used to grind the outer ribs of single or double-row
cylindrical roller bearings.
1.Adopting double-point diamond pen for
dressing of the wheel automatically. The section of wheel is a shape of
herringbone and double ribs and quadruple ribs can be fit in the fixture at
same time and grinding separately. Using two conic faces of the herringbone
wheel, it can grind the two ribs in the front and back of the raceway
separately. In order to avoid burn of grinding face, a small reciprocating
grinding for workpiece can be used simultaneously.
2.AC servo
motor drive is used for the carriages of the workpiece and grinding support.
With the support of cross roller rail, a micro-oscillation can be achieved
during the grinding.
3.Adopting
SIEMENS, FANUC^ MITSUBISHI all-digital AC servo control system.
4.
grinder is convenient to operate and
adjust.
5.Adopting
a high-precision shaft with sleeve for workpiece shaft, the motor of workpiece
adopts AC frequency variable motor, frequency variable speed.
6.High
rigidity steel is used for the spindles of full-automatic grinder. And a high
rigidity, high-precision and high-speed belt shaft is used for the
semi-automatic grinder, with the frequency variable speed, grinding at the
high-speed of 60m/s.
Lip Grinder,Bearing Lip Grinding Machine,Bearing Grinding Machine,Bearing Lip Grinder Xinxiang Sunrise CNC Bearing Equipment Co., Ltd. , https://www.cncsunrise.com
The impact energy of the existing rock drill , the gas leg type is about 6~8kg·m; the impact frequency is no more than 2000 times/min for the hand-held type, the air leg type is not more than 2600 times/min, and the upward type is not more than 3500 times/min. The type can reach 4000 times/min; the torque, the air leg type is generally 120-180kg·m; the weight, the hand-held type is 20-25kg, the air leg type is 20-30kg, and the rail type is 40-90kg.
When selecting a rock drill , the following points should generally be considered:
Working conditions: roadway, patio, shaft, stope, field, etc.;
Drilling parameters: direction, diameter and hole depth of the borehole;
Rock properties: hardness, strength and drillability.
Refer to Table 1 for general selection.
Table 1 Application of various types of pneumatic rock drills
project
Types of
Handheld
Air leg
Upward
Rail type
Recommended eye diameter (mm)
≯40
≯45
≯50
≯75
Recommended eye depth (m)
≯3
≯5
≯6
≯20
Drilling direction
Horizontal, tilt
Vertical down
Horizontal, upturn
And down
Vertically up,
Upward 60°～90°
Horizontal, upward and
Slow down
Mineral rock properties
Coal and various rocks
Hard, hard,
Extremely hard
Medium hard, hard, very hard
Hard and hard