CN103615467A - Method for optimizing oil chamber size of hydrostatic thrust bearing under certain load - Google Patents

Method for optimizing oil chamber size of hydrostatic thrust bearing under certain load Download PDF

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Publication number
CN103615467A
CN103615467A CN201310699710.3A CN201310699710A CN103615467A CN 103615467 A CN103615467 A CN 103615467A CN 201310699710 A CN201310699710 A CN 201310699710A CN 103615467 A CN103615467 A CN 103615467A
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thrust bearing
oil pocket
oil
hydrostatic thrust
bearing
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CN201310699710.3A
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CN103615467B (en
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张艳芹
李微微
戴春喜
于晓东
杨晓冬
于泽阳
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Abstract

The invention provides a method for optimizing the oil chamber size of a hydrostatic thrust bearing under a certain load. The method provided by the invention is capable of realizing the size optimization of fan-shaped chamber oil pads of a hydrostatic thrust bearing of a multiple-oil-pad round guide rail under the certain load by programming; a pressure formula is derived from an effective load formula of a fan-shaped chamber on the multiple-pad round guide rail; on the condition that an existing load is satisfied, the values R2 and R3 of the oil chamber, which cause the effective loading area to be maximum, are obtained; in other words, the maximal value R3 and the minimal value R2 are found out; the load capacity of the bearing is improved by changing the outer-side radius R3 and the inner-side radius R2 of the fan-shaped chamber without changing the overall dimension of the oil pads.

Description

The dimensionally-optimised method of oil pocket of the lower hydrostatic thrust bearing of certain carrying
technical field:
The present invention relates to field of mechanical technique, refer in particular to the dimensionally-optimised method of oil pocket of hydrostatic thrust bearing under a kind of certain carrying.
background technique:
In engineering calculation in the past and numerical simulation, only to designing the oil pocket of size, carry out bearing capacity check, and do not give full play to so the maximum bearing capacity of hydrostatic bearing, caused the waste of resource.But in the middle of technology, an effective method can not solve this now, for this, tool is studied and solved to this technical barrier and is of great significance.
summary of the invention:
The dimensionally-optimised method of oil pocket that the object of this invention is to provide hydrostatic thrust bearing under certain carrying, solve the problem that hydrostatic thrust bearing lubricating pad is optimized its oil pocket size in the situation that its boundary dimension is constant, under certain carrying, and then improve hydrostatic bearing bearing capacity, reduce its temperature rise, and by programming, realize the function of data operation and processing.
The object of the invention is to realize as follows: a kind of dimensionally-optimised method of oil pocket of hydrostatic thrust bearing under certain carrying, is characterized in that: the dimensionally-optimised method of oil pocket of the lower hydrostatic thrust bearing of certain carrying realizes according to the following steps:
Steps A, the load formula of circular guideway heavy wool pad is arranged and abbreviation, derive oil pocket pressure formula and be
Figure 2013106997103100002DEST_PATH_IMAGE001
Wherein
Figure 495965DEST_PATH_IMAGE002
,
Figure 2013106997103100002DEST_PATH_IMAGE003
,
Figure 139436DEST_PATH_IMAGE004
,
Figure 2013106997103100002DEST_PATH_IMAGE005
,
Figure 536919DEST_PATH_IMAGE006
, for fan-shaped cavity configuration size, for lubricant oil kinetic viscosity,
Figure 2013106997103100002DEST_PATH_IMAGE009
for flow,
Figure 220021DEST_PATH_IMAGE010
for hydrostatic bearing friction pair gap thickness.
Step B, in circular lubricating pad, suppose that definite value is pressure △ P, flow Q, thickness h, kinetic viscosity , internal diameter R 1, external diameter R 4, central angle
Figure 531048DEST_PATH_IMAGE012
, variate R 2, R 3.Wherein, △ P=0.37526MPa, Q=0.000127m 3/ s, h=0.00016m, =0.04Pa ﹒ s,
Figure DEST_PATH_IMAGE013
, R 1=2.32m, R 4=2.72m.
Step C, known function is programmed.Its programming process is specially:
Step C1, creation procedure document folder, called after engineering 1;
Step C2, set up the object properties in user interface and interface;
Step C3, according to the pressure formula of oil pocket, coding calculates optimum R2, R3 value, makes loaded area maximum;
Step C4, preservation engineering are in program file;
Step C5, working procedure and debugging routine;
Step C6, generation executable file engineering 1.exe;
Step D, optimum results is verified.Its proof procedure is specially:
Step D1, according to the existing lubricating pad size of factory, R 2=2.391m, R 3=2.635m, the effective bearing area A calculating s=0.18m 2;
Step D2, by optimizer, meeting under existing carrying condition the R that optimizer provides 2=2.37m, R 3=2.67m, lubricating pad effective bearing area is now A s=0.22m 2.
The invention has the beneficial effects as follows, utilize programming to realize dimensionally-optimised under certain carrying of the fan-shaped chamber of heavy wool pad round guide hydrostatic thrust bearing lubricating pad, by the fan-shaped chamber of padding on round guide is effectively carried to formula, is derived pressure formula more, meeting under the prerequisite of existing carrying, obtaining the oil pocket R while making effective bearing area maximum 2, R 3value, find R 3maximum value and R 2minimum value, by the situation that the boundary dimension of lubricating pad is constant, by changing fan-shaped chamber outer radius R 3with inner radius R 2, the bearing capacity of raising bearing.
accompanying drawing explanation:
Fig. 1 be oil recess structure of the present invention symbol for dimensioning figure,
Fig. 2 is that Computer of the present invention is optimized the object properties figure in interface.
embodiment:
With reference to accompanying drawing 1,2: a kind of dimensionally-optimised method of oil pocket of hydrostatic thrust bearing under certain carrying, is characterized in that: the dimensionally-optimised method of oil pocket of the lower hydrostatic thrust bearing of certain carrying realizes according to the following steps:
Steps A, the load formula of circular guideway heavy wool pad is arranged and abbreviation, derive oil pocket pressure formula and be
Figure 315651DEST_PATH_IMAGE001
Wherein
Figure 198156DEST_PATH_IMAGE002
,
Figure 550640DEST_PATH_IMAGE003
,
Figure 493188DEST_PATH_IMAGE004
,
Figure 744172DEST_PATH_IMAGE005
,
Figure 164789DEST_PATH_IMAGE006
, for fan-shaped cavity configuration size,
Figure 813125DEST_PATH_IMAGE008
for lubricant oil kinetic viscosity,
Figure 738356DEST_PATH_IMAGE009
for flow,
Figure 962664DEST_PATH_IMAGE010
for hydrostatic bearing friction pair gap thickness.
Step B, in circular lubricating pad, suppose that definite value is pressure △ P, flow Q, thickness h, kinetic viscosity
Figure 24161DEST_PATH_IMAGE011
, internal diameter R 1, external diameter R 4, central angle
Figure 118631DEST_PATH_IMAGE012
, variate R 2, R 3.Wherein, △ P=0.37526MPa, Q=0.000127m 3/ s, h=0.00016m,
Figure 531158DEST_PATH_IMAGE008
=0.04Pa ﹒ s,
Figure 559157DEST_PATH_IMAGE013
, R 1=2.32m, R 4=2.72m.
Step C, known function is programmed.Its programming process is specially:
Step C1, creation procedure document folder, called after engineering 1;
Step C2, set up the object properties in user interface and interface;
Step C3, according to the pressure formula of oil pocket, coding calculates optimum R2, R3 value, makes loaded area maximum;
Step C4, preservation engineering are in program file;
Step C5, working procedure and debugging routine;
Step C6, generation executable file engineering 1.exe;
Step D, optimum results is verified.Its proof procedure is specially:
Step D1, according to the existing lubricating pad size of factory, R 2=2.391m, R 3=2.635m, the effective bearing area A calculating s=0.18m 2;
Step D2, by optimizer, meeting under existing carrying condition the R that optimizer provides 2=2.37m, R 3=2.67m, lubricating pad effective bearing area is now A s=0.22m 2.
This inventive method utilization programming realizes dimensionally-optimised under certain carrying of the fan-shaped chamber of heavy wool pad round guide hydrostatic thrust bearing lubricating pad, by the fan-shaped chamber of padding on round guide is effectively carried to formula, is derived pressure formula more, meeting under the prerequisite of existing carrying, obtaining the oil pocket R while making effective bearing area maximum 2, R 3value, find R 3maximum value and R 2minimum value, by the situation that the boundary dimension of lubricating pad is constant, by changing fan-shaped chamber outer radius R 3with inner radius R 2, the bearing capacity of raising bearing.
The foregoing is only simple description of the preferred embodiments of the present invention and oneself, and the present invention's scheme required for protection is not limited to described in literary composition.For a person skilled in the art, the technological scheme that still can record previous embodiment be modified, or part technical characteristics is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within being all included in the scope of protection of present invention.

Claims (1)

1. necessarily carry the dimensionally-optimised method of oil pocket of lower hydrostatic thrust bearing, it is characterized in that: under certain carrying, the dimensionally-optimised method of oil pocket of hydrostatic thrust bearing realizes according to the following steps:
Steps A, the load formula of circular guideway heavy wool pad is arranged and abbreviation, derive oil pocket pressure formula and be
Figure 2013106997103100001DEST_PATH_IMAGE002
Wherein
Figure 2013106997103100001DEST_PATH_IMAGE004
,
Figure 2013106997103100001DEST_PATH_IMAGE006
,
Figure 2013106997103100001DEST_PATH_IMAGE008
,
Figure 2013106997103100001DEST_PATH_IMAGE010
, ,
Figure 2013106997103100001DEST_PATH_IMAGE014
for fan-shaped cavity configuration size, for lubricant oil kinetic viscosity,
Figure 2013106997103100001DEST_PATH_IMAGE018
for flow,
Figure 2013106997103100001DEST_PATH_IMAGE020
for hydrostatic bearing friction pair gap thickness;
Step B, in circular lubricating pad, suppose that definite value is pressure △ P, flow Q, thickness h, kinetic viscosity
Figure 2013106997103100001DEST_PATH_IMAGE022
, internal diameter R 1, external diameter R 4, central angle
Figure 2013106997103100001DEST_PATH_IMAGE024
, variate R 2, R 3; Wherein, △ P=0.37526MPa, Q=0.000127m 3/ s, h=0.00016m, =0.04Pa ﹒ s,
Figure DEST_PATH_IMAGE026
, R 1=2.32m, R 4=2.72m;
Step C, known function is programmed; Its programming process is specially:
Step C1, creation procedure document folder, called after engineering 1;
Step C2, set up the object properties in user interface and interface;
Step C3, according to the pressure formula of oil pocket, coding calculates optimum R2, R3 value, makes loaded area maximum;
Step C4, preservation engineering are in program file;
Step C5, working procedure and debugging routine;
Step C6, generation executable file engineering 1.exe;
Step D, optimum results is verified; Its proof procedure is specially:
Step D1, according to the existing lubricating pad size of factory, R 2=2.391m, R 3=2.635m, the effective bearing area A calculating s=0.18m 2;
Step D2, by optimizer, meeting under existing carrying condition the R that optimizer provides 2=2.37m, R 3=2.67m, lubricating pad effective bearing area is now A s=0.22m 2.
CN201310699710.3A 2013-12-19 2013-12-19 The dimensionally-optimised method of the oil pocket of hydrostatic thrust bearing under certain carrying Expired - Fee Related CN103615467B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105257701A (en) * 2015-11-16 2016-01-20 哈尔滨理工大学 Hot oil carrying factor and hot oil carrying equation for multi-oil-pad type heavy hydrostatic bearing
CN108098371A (en) * 2017-03-30 2018-06-01 哈尔滨理工大学 Self-adaptation type vertical lathe hydrostatic support workbench
CN111828477A (en) * 2019-12-27 2020-10-27 哈尔滨理工大学 Oil pad inclinable double-rectangular-cavity hydrostatic thrust bearing oil cavity area optimization method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165017A (en) * 1985-01-16 1986-07-25 Mitsubishi Electric Corp Thrust bearing device
CN103256304A (en) * 2013-04-10 2013-08-21 中国计量学院 Large-load-bearing high-rigidity static-pressure gas bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165017A (en) * 1985-01-16 1986-07-25 Mitsubishi Electric Corp Thrust bearing device
CN103256304A (en) * 2013-04-10 2013-08-21 中国计量学院 Large-load-bearing high-rigidity static-pressure gas bearing

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
于晓东，陆怀民，郭秀荣，李永海，邵俊鹏: "扇形推力轴瓦润滑性能的数值分析", 《润滑与密封》 *
朱希玲: "球磨机静压轴承轴瓦结构优化设计", 《润滑与密封》 *
邵俊鹏，张艳芹，于晓东，秦伯，王仲文: "重型静压轴承扇形腔和圆形腔温度场数值模拟与分析", 《水动力学研究与进展》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105257701A (en) * 2015-11-16 2016-01-20 哈尔滨理工大学 Hot oil carrying factor and hot oil carrying equation for multi-oil-pad type heavy hydrostatic bearing
CN105257701B (en) * 2015-11-16 2018-01-19 哈尔滨理工大学 Heavy wool cushion heavy type hydrostatic bearing deep fat carries the factor and deep fat carries equation
CN108098371A (en) * 2017-03-30 2018-06-01 哈尔滨理工大学 Self-adaptation type vertical lathe hydrostatic support workbench
CN111828477A (en) * 2019-12-27 2020-10-27 哈尔滨理工大学 Oil pad inclinable double-rectangular-cavity hydrostatic thrust bearing oil cavity area optimization method
CN111828477B (en) * 2019-12-27 2022-05-31 哈尔滨理工大学 Oil cavity area optimization method for oil pad tilting type double-rectangular-cavity hydrostatic thrust bearing

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