CN110206824B - Regulating and controlling method of porous oil-containing retainer with negative Poisson ratio effect - Google Patents
Regulating and controlling method of porous oil-containing retainer with negative Poisson ratio effect Download PDFInfo
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- CN110206824B CN110206824B CN201910510849.6A CN201910510849A CN110206824B CN 110206824 B CN110206824 B CN 110206824B CN 201910510849 A CN201910510849 A CN 201910510849A CN 110206824 B CN110206824 B CN 110206824B
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- retainer
- oil
- bearing
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- negative poisson
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6648—Retaining the liquid in or near the bearing in a porous or resinous body, e.g. a cage impregnated with the liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/46—Gap sizes or clearances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/60—Thickness, e.g. thickness of coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
- F16C2300/22—High-speed rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A regulating and controlling method of a porous oil-containing retainer with a negative Poisson ratio effect comprises the following steps of firstly, preparing a series of kerfs which are uniformly arranged in a transverse and vertical mode and do not intersect with each other in pairs on a blank of the oil-containing retainer, and randomly arranging the kerfs to form a structure with the negative Poisson ratio effect under the condition of keeping the sizes of the kerfs unchanged; the bearing retainer has a negative Poisson ratio effect; secondly, the rotating speed of the bearing is adjusted, when the speed is increased, the oil-containing retainer is subjected to the action of centrifugal force, the circumference of the retainer is increased, meanwhile, the axial length of the retainer is also increased due to the negative Poisson ratio effect of the retainer, so that the radial width of the retainer is narrowed, and the lubricating oil in the retainer flows out; the invention greatly improves the utilization rate of the lubricating oil and the service life of the bearing.
Description
Technical Field
The invention relates to the technical field of bearing lubrication, in particular to a regulating and controlling method of a porous oil-containing retainer with a negative Poisson's ratio effect.
Background
The porous oil-containing retainer is widely applied to extreme working condition support bearings such as aerospace and the like, is not only a key moving part of the bearing, but also a carrier of lubricating oil, and determines the lubricating performance of the bearing under the working conditions of high speed, oil lacking and the like. The separation of the lubricating oil in the oil-containing retainer hole mainly depends on two aspects, namely, the lubricating oil is separated out by thermal expansion when the temperature of the oil-containing retainer is increased in the running process of the bearing, but the lubricating oil is easy to lose efficacy along with the increase of the temperature of the oil-containing retainer, so that the lubricating effect is reduced. Secondly, under the action of the rotating speed, the lubricating oil is thrown out under the action of centrifugal force, but the research shows that the centrifugal force has no obvious influence on the oil outlet performance of the porous oil-containing sample, and the research on improving the lean oil lubricating performance of the rolling bearing by adopting porous polyimide is referred to in the document. At present, the problems of low porosity and low oil content of an oil-containing retainer generally exist. When the oil-containing retainer has high porosity, the strength and the antifriction property of the retainer structure are reduced, and the requirement on the stability of the bearing cannot be met. For example, in 1991, 1479 times of freight trains in Lanzhou railway branch office of Lanzhou railway office of 11-30 Ri Lanzhou in 11-month period have serious derailment accidents caused by poor bearing quality, broken retainer and heat generated by blocked bearing operation. With the continuous expansion of the application condition of the rolling bearing and the continuous improvement of the requirement on the lubricating performance, the bearing lubricating technology receives more and more attention. For example, in the chinese patent CN207989551U, "a new type bearing retainer", a plurality of annular oil storage grooves are arranged at one time in the edge direction of the curved surface of the retainer, so that the circumferential side of the steel ball forms a satiety effect, and the lubricating performance of the steel ball is improved. Chinese patent CN108843689A, "a stamping cage with lubricant duct and processing method", utilizes the circumferential annular groove formed on the sidewall of the pocket and the microtexture formed at the bottom of the groove to reduce the sliding friction between the cage and the rolling element.
The patent greatly improves the lubricating effect between the bearing retainer and the steel ball and the reliability of the bearing, but the oil-containing retainer still has the defects of low oil content, low utilization rate of lubricating oil, failure of the lubricating oil and the like. How to achieve high oil content, high utilization rate of lubricating oil, good mechanical property and good processing manufacturability becomes a key problem restricting the development of ultra-high speed and high-speed shaft bearings.
Disclosure of Invention
The invention aims to provide a regulating and controlling method of a porous oil-containing retainer with a negative Poisson ratio effect, aiming at solving the problems that the existing bearing retainer has low oil content, low utilization rate of lubricating oil, difficult balance between mechanical property and oil-containing property and the like under the working condition of high speed and heavy load.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a regulation and control method of a porous oil-containing retainer with a negative Poisson ratio effect comprises the following steps:
firstly, preparing a series of kerfs which are uniformly arranged in a transverse and vertical mode and are not intersected in pairs on an oil-containing retainer blank, and randomly arranging the kerfs to form a structure with a negative Poisson ratio effect under the condition of keeping the size of the kerfs unchanged; the bearing retainer has a negative Poisson ratio effect;
if the oil outlet amount is adjusted, the oil outlet amount is increased, and as long as the rotating speed of the bearing is increased, the oil-containing retainer is subjected to centrifugal force, the circumference of the retainer is increased, and meanwhile, the axial width x of the retainer is also increased due to the negative Poisson ratio effect of the retainer, so that the radial thickness t of the retainer is narrowed, the lubricating oil in the retainer flows out, and the lubricating performance of the bearing is enhanced;
and thirdly, if the oil outlet amount is adjusted to reduce the oil outlet amount, the thickness t of the retainer is increased as long as the rotating speed of the bearing is reduced, the pore structure in the oil-containing retainer is deformed, the lubricating oil is sucked in real time, the lubricating oil is prevented from being lost, and the lubricating service life of the bearing is prolonged.
Compared with the prior art, the oil yield of the porous oil-containing retainer of the bearing is regulated and controlled by utilizing the negative Poisson ratio effect for the first time, and the problems of low oil-containing rate of the retainer, low utilization rate of lubricating oil and failure of the lubricating oil at home and abroad at present can be solved; firstly, inserting a series of kerfs which are uniformly arranged in a transverse and vertical mode and do not intersect with each other into a retainer to form an oil-containing retainer structure with a negative Poisson ratio effect; secondly, the oil yield of the porous retainer of the bearing is controlled by the centrifugal force generated by the running of the bearing; the function of the centrifugal force is enlarged, so that the lubricating oil in the bearing retainer is efficiently separated out, the utilization rate of the lubricating oil is improved, and the service life of the bearing is prolonged.
Drawings
FIG. 1 is a block diagram of a structure having a negative Poisson ratio effect.
FIG. 2 is a diagram showing the effect of the present invention in a specific embodiment.
FIG. 3 is a schematic diagram of the oil discharge of the oil-containing cage of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A regulation and control method of a porous oil-containing retainer with a negative Poisson ratio effect comprises the following steps:
firstly, a series of kerfs which are uniformly arranged in a transverse and vertical mode and are not intersected in pairs are prepared on an oil-containing retainer blank, and a structure diagram with a negative Poisson ratio effect is shown in a figure 1, and the structure diagram comprises a vertical kerve 1, a horizontal kerve 2 and an oil-containing retainer blank 3; under the condition of keeping the size of the cutting seam unchanged, referring to fig. 2, a series of alternating horizontal and vertical cutting seams with equal length are prepared on an oil-containing retainer, and the random arrangement of the cutting seams forms a structure with a negative Poisson ratio effect; the bearing retainer has a negative Poisson ratio effect;
secondly, referring to fig. 3 in the bearing operation process, fig. 3 is a schematic view of regulating and controlling oil discharge of the oil-containing retainer of the present invention, and the oil-containing retainer comprises a structure 4 (a ball surface, an inner ring surface and an outer ring surface) contacting with the retainer, a friction pair 5, a retainer 6 and lubricating oil 7, wherein a dotted line represents a length, width and thickness change state diagram of the retainer after deformation under the combined action of a centrifugal force and a negative poisson ratio effect. The oil-containing retainer is subjected to centrifugal force, the circumference of the retainer is increased, meanwhile, the axial length of the retainer is also increased due to the negative Poisson ratio effect of the retainer, so that the radial width of the retainer is narrowed, and lubricating oil in the retainer flows out, and the structure is as follows:
the higher the bearing speed, the more the friction between the cage and the inner and outer races of the bearing and the balls, and the more lubricating oil is required. Meanwhile, r is increased under the action of centrifugal force of the bearing retainer, namely a negative Poisson ratio material is stretched, the negative Poisson ratio effect can be obtained, at the moment, the oil-containing retainer expands along the axial direction, namely x is increased, finally, the thickness t of the retainer is reduced, a pore structure in the oil-containing retainer is deformed, lubricating oil is extruded out in time, friction is reduced, the temperature of the bearing is reduced, and the effects of preventing the lubricating oil from losing efficacy and improving the lubricating performance of the bearing are achieved.
Along with the reduction of the rotating speed of the bearing, the thickness t of the retainer is increased, the pore structure in the oil-containing retainer is deformed, and the lubricating oil is sucked in real time, so that the lubricating oil is prevented from being lost, and the lubricating life of the bearing is prolonged.
The invention constructs the bearing retainer structure with the negative Poisson ratio effect, and the radial thickness t of the retainer is changed along with the change of the rotating speed of the bearing. Along with the increase of the rotating speed of the bearing, the radial thickness of the retainer is reduced, the lubricating oil is extruded out, and the lubricating performance of the bearing is improved under the high-speed working condition. In a similar way, along with the reduction of the rotating speed of the bearing, the radial thickness t of the retainer is increased, lubricating oil is sucked, the failure and the loss of the lubricating oil are reduced, the utilization rate of the lubricating oil is greatly improved, and the service life of the bearing is prolonged.
Claims (1)
1. A regulation and control method of a porous oil-containing retainer with a negative Poisson ratio effect is characterized by comprising the following steps:
firstly, preparing a series of kerfs which are uniformly arranged in a transverse and vertical mode and are not intersected in pairs on an oil-containing retainer blank, and randomly arranging the kerfs to form a structure with a negative Poisson ratio effect under the condition of keeping the size of the kerfs unchanged; the bearing retainer has a negative Poisson ratio effect;
if the oil outlet amount is adjusted, the oil outlet amount is increased, and as long as the rotating speed of the bearing is increased, the oil-containing retainer is subjected to centrifugal force, the circumference of the retainer is increased, and meanwhile, the axial width x of the retainer is also increased due to the negative Poisson ratio effect of the retainer, so that the radial thickness t of the retainer is narrowed, the lubricating oil in the retainer flows out, and the lubricating performance of the bearing is enhanced;
and thirdly, if the oil outlet amount is adjusted to reduce the oil outlet amount, the thickness t of the retainer is increased as long as the rotating speed of the bearing is reduced, the pore structure in the oil-containing retainer is deformed, the lubricating oil is sucked in real time, the lubricating oil is prevented from being lost, and the lubricating service life of the bearing is prolonged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510849.6A CN110206824B (en) | 2019-06-13 | 2019-06-13 | Regulating and controlling method of porous oil-containing retainer with negative Poisson ratio effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910510849.6A CN110206824B (en) | 2019-06-13 | 2019-06-13 | Regulating and controlling method of porous oil-containing retainer with negative Poisson ratio effect |
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| CN110206824A CN110206824A (en) | 2019-09-06 |
| CN110206824B true CN110206824B (en) | 2020-08-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113738764B (en) * | 2021-08-30 | 2022-10-28 | 西安交通大学 | Low-noise retainer with thermal-force double negative superstructure |
| CN114542937B (en) * | 2022-02-18 | 2022-12-06 | 西安交通大学 | Self-adaptive lubricating superstructure based on negative Poisson ratio substrate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664427A5 (en) * | 1983-05-24 | 1988-02-29 | Industrieorientierte Forsch | Bearing for sliding motion in high vacuum ambient - uses graphite or boron-nitride lubricating bush or zirconia non-lubricating bush |
| CN1145299A (en) * | 1995-09-12 | 1997-03-19 | 三菱电机家用机器株式会社 | Porous-plastic bearing and method of manufacturing porous-plastic bearing |
| CN1986621A (en) * | 2005-12-21 | 2007-06-27 | 中国科学院化学研究所 | Negative poisson's ratio material and its preparing method and use |
| CN101316919A (en) * | 2005-11-29 | 2008-12-03 | Ntn株式会社 | Porous solid lubricant, bearing, and constant velocity universal joint |
| CN205605641U (en) * | 2016-01-27 | 2016-09-28 | 苏州睿动电气科技有限公司 | Oil -containing bearing |
| CN109163018A (en) * | 2018-10-12 | 2019-01-08 | 西安交通大学 | A kind of main shaft pretightning force adaptive regulation method based on negative poisson's ratio structure |
-
2019
- 2019-06-13 CN CN201910510849.6A patent/CN110206824B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664427A5 (en) * | 1983-05-24 | 1988-02-29 | Industrieorientierte Forsch | Bearing for sliding motion in high vacuum ambient - uses graphite or boron-nitride lubricating bush or zirconia non-lubricating bush |
| CN1145299A (en) * | 1995-09-12 | 1997-03-19 | 三菱电机家用机器株式会社 | Porous-plastic bearing and method of manufacturing porous-plastic bearing |
| CN101316919A (en) * | 2005-11-29 | 2008-12-03 | Ntn株式会社 | Porous solid lubricant, bearing, and constant velocity universal joint |
| CN1986621A (en) * | 2005-12-21 | 2007-06-27 | 中国科学院化学研究所 | Negative poisson's ratio material and its preparing method and use |
| CN205605641U (en) * | 2016-01-27 | 2016-09-28 | 苏州睿动电气科技有限公司 | Oil -containing bearing |
| CN109163018A (en) * | 2018-10-12 | 2019-01-08 | 西安交通大学 | A kind of main shaft pretightning force adaptive regulation method based on negative poisson's ratio structure |
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