1 hole restrictor
(1) internal to external throttle throttle, and the installation of the upper and lower chamber pressure gauge real-time display. Make maintenance easy, in particular, can easily be cleaned regularly, this is an internal restrictor can not be compared.
(2) throttle ratio. Throttle than the theoretical value of β is between 1.2 to 1.5, and 1.25 based on years of experience to better. So that maintenance, the need for the geometric precision of the spindle, front and rear bearing geometric accuracy, concentricity, roundness and taper strict control to ensure the value of β. Depending on the machine to determine the carrying capacity of the value of e (the geometric center of the spindle and bearing eccentricity), the β value of the best.
(3) is not installed in the oil chamber when the spindle, each outlet of the oil column must be consistent (observation), if not, should be taken to change the restrictor aperture method, change the flow. To 4 cavities, for example, generally, the left and right cavity of the oil column between the 20 ~ 25mm, hole diameter of 0.25 ~ 0.4mm.
(2) thin-film feedback restrictor
Feedback cutting film bearing stiffness is great, but the machine also often appear in the run hold tile, nap, out of pressure and so on. Film is the film most critical feedback, practice that, bearing locking, nap of the main reasons are: ① film due to plastic deformation; ② feedback slow. Mutations outside the set, the film did not react when the tile has been friction with the shaft; ③ film fatigue. Film used for a long time, fatigue deformation, the equivalent of changing the feedback parameters.
Increase the film thickness and use some of the fatigue resistance of materials, may receive good results. Generally rigid membrane, pre-load, reserve gap method. Specific approach is: the 1.4mm to 4mm thick thick film rigid membrane, 0.05mm thick, the next cavity pad tin-foil, so that the spindle adjusted to the desired location than the location of high-0.05mm. Purpose is to force when the spindle (wheel weight, cutting force), the just return to the ideal center.
3 supply system improvements
Hydrostatic bearing oil supply system, in addition to the coarse filter, fine filter, the remaining components of the hydrostatic bearing has a protective effect. On the basis of the original system to improve fuel supply system.

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No oil lubricated bearings


No lubricating bearing series
1, no oil lubrication or oil lubrication less, apply to the oil or fuel is difficult to add place, you can use without maintenance or less maintenance.
2, good wear resistance, low coefficient of friction, a long service life.
3, there is the right amount of elastic-plastic, can stress distribution in a wide contact surface and improve the bearing capacity.
4, similar to static and dynamic friction coefficient, can eliminate under the low crawl, in order to ensure mechanical precision work.
5, can reduce mechanical vibrations and reduce noise, prevent pollution, improve working conditions.
6, during operation, the transfer film can be formed, play a role in protecting the shaft, no bite-axis phenomenon.
7, the hardness required for the shaft, lower shaft without quenching can be used, thereby reducing the associated machining difficult.
8, thin-walled structure, light weight, can reduce the machine size.
9, a variety of metal plated steel back can be used in corrosive media; has been widely applied to various mechanical sliding parts, such as:
Presses, textile machines, tobacco machines, micro-motor, automobile, motorcycle and forestry machinery and so on.





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