A method for determining the position of the oil outlet of a double rectangular cavity hydrostatic sliding bearing

Abstract

The invention provides a method for determining an oil outlet position of a double rectangular cavity static pressure sliding bearing; during the operation process of the static pressure sliding bearing, due to the influence of the position of the oil outlet, the shape and rotary speed of an oil chamber, the flow rate of the hydraulic oil flowing out of each oil sealing edge is different, so the operation stability of the static pressure equipment is reduced. In order to balance the flow of the oil sealing edge, reduce the influence of the rotary speed on the flow distribution and improve thebearing performance and stability of the static pressure sliding bearing, the invention provides the method for determining the oil outlet position of the double rectangular cavity static pressure sliding bearing. The method comprises the following steps of: step A: establishing a single rectangular cavity to simplify the flow rate vector; step B: establishing a rotary speed vector of a turntable,and synthesizing with the hydraulic oil flow rate vector to obtain a resultant velocity; step C: analyzing the flow change of each oil sealing edge by the resultant velocity, and performing integralsum calculation; step D: obtaining a liquid resistance ratio from the flow rate ratio, wherein the distance from the oil outlet to the oil sealing edge is larger, and calculating the coordinates of the oil outlet by the integral ratio method; and step E: calculating the position of the oil outlet of another oil chamber by the geometric method.

Description

technical field [0001] The invention discloses a method for determining the position of an oil outlet of a hydrostatic sliding bearing with double rectangular cavities, which belongs to the field of mechanical manufacturing. Background technique [0002] With the development of the mechanical processing industry, the trend of heavy and large-scale equipment is becoming more and more obvious, and the importance of static pressure equipment is also becoming more and more prominent. Among them, the most widely used is the static pressure sliding bearing. Because it is lubricated with hydraulic oil, the friction coefficient is very low, the structure is simple, it is easy to install, and it can run at high speed and heavy load, and can guarantee a certain processing accuracy, so it is very suitable for the processing of large equipment. However, in the process of processing, especially in the continuous operation under high-speed and heavy-load conditions, there are problems of ...

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Problems solved by technology

[0003] The present invention is a method for determining the position of the oil outlet of a double-rectangular cavity static pressure sliding bearing aimed at the problem of uneven flow through each sealing oil edge caused by the rotation of the turntable during the operation of the static pressure sliding bearing.

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