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.
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The girth gear is one of the more commonly used parts in large mechanical equipment (such as rotary kiln, ball mill). Its function is to transmit and change the direction of force through the large ring gear. The large ring gear belongs to the thinwalled ring castings. ... To complete the installation and alignment of the girth gear with high ...
Install the jack screws, if provided, in the gear counterbore before mounting the gear to the. shell assembly. 32. Tel: (+27) 11 454 4177 Fax: (+27)11 454 4178 projects f EL BROCAL. Mill Installation Manual. 16x22ft, 2800kW Ball Mill. Special Tools Needed for the Gear Pinion Installation.
Change or reversal and alignment of girth gear, pinions and drives. Repair and refurbishment Our repair and refurbishment team provides handson gear service including: Temporary repairs of crack and wear on girth gear and pinion Ball mill flange runout machining. Inspection services Beside the visual inspection of girth gears we also ...
Girth gears for critical applications 02 03 Girth gears are used in a number of the world's critical industries, including mining, cement and minerals. Usually fitted to the outside of horizontal mills, rotary mills and kilns, girth gears provide the system's primary rotational drive and as such need to be robust, efficient and built to ...
The girth gear driving pinion ends up getting aligned to the reducer, causing a misalignment issue between the girth gear teeth and the driving pinion teeth (Fig. 1). Proper alignment should consist of: axial and radial alignment of the girth gear to the center line of kiln/mill; center line of the driving pinion is aligned to the center line
Ball Mill Sole Plate. This crown should be between .002″ and . 003″, per foot of length of sole plate. For example, if the sole plate is about 8′ long, the crown should be between .016″ and .024″. Ball Mill Sole Plate. After all shimming is completed, the sole plate and bases should be grouted in position.
Walks the walk, talks the torque. Designed to deliver exceptional levels of performance and value, David Brown Santasalo ball mill drives are optimised for primary and secondary grinding applications. Extensively field tested and proven in harsh cement applications, our mill drive gearboxes cover all grinding applications up to 10 MW per drive ...
Ball mill alignment and measuring We apply advanced measuring techniques for a wide range of measurements on all rotary equipment: Alignment of drive system Vertical and horizontal axis Shell test Temperature profile Girth gear and pinion worn out/wobble Measurement and alignment of drive systems.
Cleaning of gear ring and mill flange → positioning of gear ring → coarse alignment of large gear ring → positioning and coarse alignment of pinion → installation of motor reducer → primary grouting → fine alignment of large gear ring → fine alignment of pinion → fine alignment of motor reducer.
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.
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 9000 HP Motor speed 990 rpm Mill speed 14 rpm R/L ill diameter 5 m ... Fitting of girth gear to mill A: The spigot reference diameters can have 12 mm clearance. The ... mill empty, Fig. 8a, realignment should be undertaken with the mill filled with mill balls, i. e. with reference to the elastic sag in cold con
Ball mill Girth gear and Pinion Replacement and Drive station alignment. Cement Mill Girth Gear Replacement with Both Pinions and Alignment. Autogenous Mill Shutdown Job. Ball Mill Pinion Replacement Drive Alignment. Ball Mill Girth gear and Pinion reversal. Ball Mill Girth Gear and Trunnion Bearing Replacement. Ball Mill Girth gear Replacement.
The tip clearance should be. a) Able to take care of the thermal expansions during the operations. The gear ratio shows it to be a large gear. Our gears with ratio 222/27 ahs a diameter of more than 5m. b) Take care of the profile machiining the root radius etc should not be damaged during hobbing the involute.
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
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.
• The operating temperature profile of girth gear pinions give an indication of the pinion's overall alignment with the girth gear. • High differential temperatures from end to end indicate misalignment. Pinion Temperature Profile Global Inspections Installed System on a Ball Mill 68.
cific to mill drives apply: No alignment of the drive train required, as necessary for pinion drives; girth gear, pinion, bearings, gear boxes (optionally) and motors require a precise alignment ... Figure 3 Overview of different drive solutions for conveyors: 5 timetaking grinding out of the ball mill. Ball mills with Energy savings ...
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...
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
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 ...
align Copy View presentation slides online. ... 1/12/22, 8:15 PM How to install and align the girth gear and pinion | prmdrive
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.
/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.
Cold and hot kiln alignment, inspection for tyre, roller diameter, shell deformation, ovality, kiln axis, girth gear root clearance, backlash, shell crank
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 Metso Outotec is proud to announce the launch of our new rebranded offer: Metso Outotec Gears and Pinions. You can expect the same quality supported by decades of gearing and
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