Import static pressure bearing of Some experience in maintenance - bearing, hydrostatic bearing imports, maintenance - construction machinery industry

Import static pressure bearing of Some experience in maintenance - bearing

, hydrostatic bearing imports, maintenance - construction machinery industry

Static imports Bearing Its high rotational accuracy, rigidity and high capacity, no wear and durability. The following is hydrostatic bearings in the maintenance of the import process to explore and try to get the experience points, only for your reference.

1. Orifice device: (1) internal savings to external savings, and to install the upper and lower chamber pressure gauge real-time display.

Makes maintenance easy, in particular, can easily be cleaned regularly, this is an internal restrictors to none.

(2) throttling ratio. Throttle than the theoretical value of is between 1.2 to 1.5, and 1.25 based on years of experience to be better. So that maintenance needs to the geometric precision of the spindle, before and after Bush Geometric accuracy, concentricity, roundness and taper strictly controlled to ensure value. Under Machine tool Determine the carrying capacity of e values (the geometric center of spindle and bearing eccentricity), to the best value.

(3) The oil chamber is not loaded in the spindle, each out of the oil port of oil column must be consistent (observation), if not, should be taken to change the restrictor aperture of methods to alter the flow. With 4 cavities, for example, generally, the left and right chamber of the oil column in 20 ~ 25mm between hole diameter of 0.25 ~ 0.4mm.

2. Film feedback restrictor: Feedback film bearing stiffness is a big saving, but also in the operation of machine tools often appear hold tile, galling, out pressure and so on. Feedback is the key film film practice that bearing locking, scuffing of the main reasons are: film caused by plastic deformation; slow feedback. Mutations outside the set, the film not respond, the shaft and the friction of the tile has been; film fatigue. Film using a long time, fatigue deformation, the equivalent of changing the feedback parameters.

Increase the thickness and the use of some fatigue-resistant material, can receive good results. Generally rigid film, pre load, reserve gap method. More specifically: the 1.4mm thick 4mm thick rigid membrane film to the next chamber pad 0.05mm thick aluminum foil, make adjustments to spindle position than ideal location of high-0.05mm. Purpose of the force when the spindle (wheel weights, cutting force), the just return to the ideal center.

3. Fuel System Improvement: Hydrostatic bearing oil supply system of imports, except for coarse filter, fine filter, the remaining components have a protective effect on the hydrostatic bearing. Based on the original system to improve fuel supply system.

(1) cutting board in the mouth after the oil pressure switch, and then gauge (the original front in the accumulator), so the operator can see the chamber pressure and the size of inlet pressure. When its pressure is greater than a certain value, in order to immediately shut down to avoid bearing locking. Such as: inlet pressure 2mpa, export chamber pressure 1.2 ~ 1.6mpa, less than 1.2mpa must stop.

(2) increase the number of test devices:

Electrode wear and static bearing spindle bearing imports between 0.04 ~ 0.05mm gap, during which the oil has some resistance to detect the resistance changes, we can know the size of the gap . To a spindle pole, bearing to the other extreme, measurement of the change in resistance. After this signal sent to the optical amplifier alarm and control system to control spindle motor start and stop, in order to avoid friction axis and tile.

POST COMMENT

Meet The Leading Company In The Field Of Aircraft Maintenance Conservation of natural stone stone rust prevention and control - stone, maintenance - Building Materials Industry Facts About Lawn Maintenance That You Should Know Pelleting machine maintenance and maintenance - pellet mill - the pharmaceutical industries Siemens Takes Over Maintenance Of Radomiro Tomic Mine Crusher And Belt System Proper Cabinet Maintenance The Key To Longevity Common Mistakes To Avoid In Maintenance Of Wooden Gates General Maintenance Issues Usage And Maintenance Of Stainless Steel Cookware Do tires need maintenance? Acceptance Testing And Maintenance Of Power Transformer It's Best to Take On Your Car's Maintenance In Phases Maintenance and use of liquid crystal display (lcd) skills