Mill lifting at inlet/outlet. Mill slide ring radial run out. Measurement of Girth Gear axial and radial runout. Measurement of root gap backlash of gear and pinion. Inspection of trunion lubrication unit. Visual inspection of mill components. BMI Services NDT analysis of Mill Components. Inspection and Alignment of Mill Components.
Ball mill girth gear alignment pdf Rating: / 5 (8935 votes) Downloads: 70753 >>>CLICK HERE TO DOWNLOAD<<< Gear units comprise basically : fig. The girth gear driving.
Costs for higher initial investment. Depending on the overall quality, the girth gear drive system can be priced. at 5 20% less than the planetary central drive. If the spare parts a r e included and an equivalent manufacturing quality is. assumed, the difference in investment costs is usually about 6% (see also.
a specific example, a 6,250kW ball mill gear at output speed has a required rim thickness value of 210mm ( in) in a tee configuration whereas the box Y gear has 165mm ( in). This reduces the overall weight of the gear to 61,600 kg (135,700 lbs.) in a box Y configuration but 67,500 kg (148,700 lbs.) as a tee configuration.
fRunningin procedure Ball Mill Open Gear drive. 1. Preparation. check backlash and root clearance figures. •the pinion root to girth gear tip clearance and not the. gear root to pinion tip clearance should be measured. because it is smaller. •if tooth flanks are worn out the difference across the.
II84 The pinion and girth gears of two 9 MW ball mills exhibited severe scoring within . and the gears would appear to be out of alignment even if their mechanical . II84 gears on both ball mills exhibited excessive excursions in the thermal . alignment, that is, the pinions were now misaligned in the opposite direction.
Technical data segmented girth gears. Girth gear pitch diameter of up to 16 m (larger diameters are available after further discussion) Maximum width 600 mm; Maximum power 4000 kW per pinion; Maximum pitch line velocity 6 m/s; Girth gear module 20, 25, 30, and 40 mm; Calculated according to ISO standard 6336 (AGMA on request) Preferred ...
Those ball mills correspond to different mill power, such as for tumbler mill with 3050 W kg −1 (Varin et al. 2009), for a vibratory mill with W kg −1, and for the planetary mill with 900036,000 W kg −1 (Avolio et al. 2012). During the milling process, various stress actions occur simultaneously like compression ...
Ball Mill Erection Schedule Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. ball mill erection ... Download as PDF, TXT or read online from Scribd. Flag for inappropriate content. Download now. ... 17 Alignment of the girth gear (axial and radial) 3 days 16. 18 Foundation ...
Gears and pinions A complete range of gear and pinion sets, inspections, design, installation and alignment services to drive your mill's performance Introducing a new name Outotec is proud to announce the launch of our new rebranded offer: Outotec Gears and Pinions. You can expect the same quality supported by decades of gearing and
main reduction gear box, mill pinion and girth gear. The mill is also equipped with a barring drive, which is either connected to the main drive reduction unit or, alternatively mounted at the back of the main motor. Refer to Figure 3 for a schematic of the mill drive system. The girth gear is considered the most critical component
AGMA 6014 Mill Gearing ASTM E2905 Technical Contact AGMA 9005 Industrial Gear Lubrication AGMA 6014 Mill Gearing AGMA 919 Condition Monitoring Girth Gear Engineering Condition Assessment for Machinery Reliability, and Asset Optimization. ... alignment with the ring gear. These drive systems can offer rating increases
Mills Kilns. Hofmann Engineering has a long and successful history of designing, manufacturing, installing and servicing mill and kiln parts. With a capability of manufacturing girth gears up to 15m (49ft) diameter and shells up to (44ft) diameter, Hofmann Engineering is in a unique position to supply these large parts.
Spray Lance. Spray systems are used to lubricate large gear and pinion sets, found on ball mills, rod mills, kilns, etc. Each systems includes an air operated pumping station, a measuring valve panel, a spray nozzle, electrical controls, and a number of optional features. Gear face widths of 2" to 42" can be lubricated with nozzles and nozzle ...
BALL MILL ALIGNMENT. Ball mills are rotary equipment with relatively high speed of operation commonly used at industry. In fact, due to this higher speed of rotation all the components: pinions, gears, main and auxiliary drives has to be set in a very precise way. Mutual, correct positioning of such elements guarantees their durable and long ...
Measure and check the gear alignment. NoLoad Conditions. ... 2800kW Ball Mill. APPENDIX 4 GIRTH PINION GEAR DATA. GIRTH GEAR AND PINION DATA GIRTH GEAR Type. Single Helical. Number of Teeth. 182. Pitch. ... 04coupling 304 04coupling 304 Manuel Díaz Villouta. Coupling Install.
Grinding Mill Gears. Gears for BallRod Mills drives are furnished as standard on the discharge end of the mill where they are out of the way of the classifier return, scoop feeder, or original feed. ... singleunit soleplate under trunnion and drive pinions for perfect, permanent gear alignment. The Ball and Rod Mill size we specialize in are ...
The gear box is a setup intended for making the power transmission from the electric motor to the ball mill. During this stage the gear box plays a crucial role in terms of controlling speed and torque. The gear box is a collection of shafts, bearings, casing and gears in a systematic form to obtain the desired output.
ball mill pinion alignment pdf ? Grinding Mill China. II84 in pinion alignment. It was found that the only way to stop the . whereas the damage on the other ball mill gears was on the nondrive side. ... ball mill girth gear alignment. II84 The pinion and girth gears of two 9 MW ball mills exhibited severe scoring within . and the gears ...
It is a systematic approach to walk well as various services covering ball mill During a measurement campaign, high by inspection. In Figure 1 a maintenance mechanics (crack test, accompanying ovality and relative movement at tyre 2 inspector checks the gap between the assembly supervision and commissioning was detected.
BERULIT Open Gear Lubricant System are free of chlorine and bitumen and do not contain any toxic heavy metals or solvents. BERULIT Open Gear Lubricants protect open gear drives such as in ball mills, rotary kilns, driers and mixing drums used in the cement, lime, steel, paper and fertiliser industry and in mineral processing.
CM1 Girth Gear Report Free download as Excel Spreadsheet (.xls / .xlsx), PDF File (.pdf), Text File (.txt) or view presentation slides online. gg. gg. Open navigation menu. ... CEMENT MILL1 GIRTH GEAR ALIGNMENT READINGS SUMMARY REPORT. GIRTH GEAR AXIAL RUNOUT GIRTH GEAR RADIAL RUNOUT.
turn the girth gear around on the mill and run it on the back flank. In order to maintain alignment of the girth gear and mill pinion, standard practice in the industry is to measure the temperature difference across the face width of the girth gear. The David Brown standard is a maximum temperature difference (DeltaT) of 6 degrees
mills and ball mills for use in the mining and cement industries. By current standards, girth gears can be as large as 14 meters (46 feet) in diameter, meters (44 inches) face width, and 50 module (.5 DP) tooth size, and weighing upwards of 120 tons. Flange mounted gears rely, in large part, on the mill structure to provide the stiffness ...
Ball Mill Girth Gear Pinion Alignment,Ball Mill Girth Gear Alignment Pdf,Rotary Kiln Girth Gear Replacement
/radial runout. of the drive trains. power splitting. distances variable. load distribution. of the girth gear. gear is through hardened only, fatigue strength is limited. Dynamic behaviour. A lot of individual rotating masses risk of resonance vicinities.
Girth gears are manufactured from alloy steel castings with a capacity of up to 150 tons or Ø per gear set. We manufacture pinions and gearbox internals from throughhardened or casehardened alloy steel forgings. Gear tooth and root areas are subjected to grinding with the latest generation Klingelnberg Höfler profile grinding ...
The first step in girth gear alignment is preparation. The equipment must be shut down and deenergized, and safety protocols should be followed. Once safety measures are in place, the equipment should be cleaned, and any debris or dirt removed. The second step is measuring the alignment of the girth gear and pinion.
Girth gear and pinion are two of the most crucial components in cement making machinery such as rotary kiln and cement ball mill. They play a pivotal role in ensuring the smooth operation of the machinery and directly impact the quality and efficiency of the cement production process. The girth gear is a large ring gear that is mounted on the ...
There are three ways to align the pinion skew to the girth gear; 1) Using the pitch lines 2) Setting root clearance 3) Setting backlash (only applicable to a new gear and pinion). Measuring the root clearance is best done using Babbitt or lead slugs. Use % 1" diameter Babbitt slugs about 1 to 2" in length.
Girth gear and pinion drive In this drive variant the mill shell is driven via one or two pinions and a girth gear bolted onto the mill shell. Fastrunning slip ring motors with interposed gear units or slowrunning synchronous motors can be used. Central drive Tubemillcentraldrivnnected to a mill trunnion are timetested systems with a ...
This video shows how a Girth Gear is mounted on alignment fixtures, during Girth Gear reversal the alignment fixtures are handy and help us to adjust the Gir...
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