A variable preload device using liquid pressure for machine tools spindles

Choi, Chi-Hyuk; Lee, Choon-Man

doi:10.1007/s12541-012-0131-2

Cited by 15 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, bearing preload device by liquid pressure was discussed by Chio and Lee. 18 The above representative work indicates that, at high rotation speed, spindle temperature is reduced by a lower preload. Meanwhile, at low rotation speed, spindle dynamic stiffness is significantly enhanced with a larger preload.…”

Section: Introductionmentioning

confidence: 90%

“…Obviously, the new nonuniform method is different from the constant pressure/ rigid preload or variable preload method. 16,18,20 In this article, the conception of non-uniform preload adjustment approach was proposed and investigated in the following procedure. First, the nonuniform preload equivalent transformation and nonuniform adjustment were introduced.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of multiple spindle characteristics under non-uniform bearing preload

Zhang

Xiao-hu

Hong

et al. 2016

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The non-uniform distribution load during machining and assembly process is crucial for spindle system, especially in complex working conditions. The conception of non-uniform preload adjustment approach was proposed and experimentally investigated in this article. Based on the mechanical equivalent principle, the non-uniform preload was theoretically transformed to the combination of uniform preload and an extra moment. Then, the non-uniform preload of rolling bearing was experimentally measured and analyzed via a spacer with 15-mm wear loss on the end face. The spindle performance factors, such as rotation accuracy, temperature rising, acceleration, and vibration, were all monitored. The rotation center of spindle was deviated in different non-uniform preload conditions. Meanwhile, the temperature and vibration performance of non-uniform preload are superior to those of uniform bearing preload.

show abstract

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Investigation of multiple spindle characteristics under non-uniform bearing preload

Zhang

Xiao-hu

Hong

et al. 2016

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

Section: Centrifugal Preload Devicementioning

confidence: 99%

“…In addition to the above structures, scholars have developed deformable rubber [91] and liquid preload device [92] based on material properties and centrifugal principle, as shown in Fig. 15a [91] and b [92] respectively. The main structures are similar despite of the conversion mediums, preloads are generated from the deformed mediums under centrifugal effects, where the liquid preload device owns excellent fluidity and shape adaptability.…”

Section: Centrifugal Preload Devicementioning

confidence: 99%

Research Development of Preload Technology on Angular Contact Ball Bearing of High Speed Spindle: A Review

Kolář

et al. 2020

Int. J. Precis. Eng. Manuf.

View full text Add to dashboard Cite

Preload of angular contact ball bearing (ACBB) is extremely important to high speed spindle, which has a great influence on the spindle's dynamic and thermal characteristics, etc. In this paper, the preload source of ACBB; the main preload principles, methods and their advantages and disadvantages; research progress and development trend of preload device are discussed. On the basis, common criteria for computing and choosing optimal preload; influence of preload on dynamic and thermal properties of bearing and spindle system are discussed as well. The purposes of this paper are to clarify the research idea of preload, and provide a reference for accurately calculating the bearing stiffness under sophisticated conditions, precisely controlling dynamic parameters of high speed spindle, designing preload device with excellent dynamic performance, etc.

show abstract

“…13 promoted the shaft bending stiffness by 14%. Choi and Lee 14 used liquid pressure to adjust preload on spindle bearings. Ozturka et al.…”

Section: Introductionmentioning

confidence: 99%

Experiment analysis of spindle performance with rolling bearing under non-uniform preload

Xiao-hu

Zhang

Hong

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

As a result of the manufacturing errors in the main parts of spindle, and the errors in assembly process of spindle, as well as the non-uniform heat distribution during spindle operation, the non-uniformly distributed preload in rolling bearing is inevitable. The non-uniform preload has not only axial force on the rolling bearing, but also the bending moment around the rolling bearing center. The effect of preload in bearing being non-uniform on the spindle performance is still unclear. In order to analyze the spindle performance with rolling bearing under non-uniform preload, a spindle test system with adjustable non-uniform distribution preload is built. By changing the magnitude of preload force on each action point, it can make the preload force distribute non-uniformly. In the static state of spindle, upon the change of non-uniformly distributed preload, the radial displacement of spindle shaft end is also changed, while in the dynamic state of spindle, it will lead to the change of the rotation center of spindle as a result of bending moment accompanying the non-uniform preload. Furthermore, the dynamic and static results show that when the preload is under non-uniform distribution, the spindle performance is significantly different from that under uniform preload. So this study would have certain reference value to check the spindle performance and explore novel preload method for rolling bearing.

show abstract

A variable preload device using liquid pressure for machine tools spindles

Cited by 15 publications

References 8 publications

Investigation of multiple spindle characteristics under non-uniform bearing preload

Investigation of multiple spindle characteristics under non-uniform bearing preload

Research Development of Preload Technology on Angular Contact Ball Bearing of High Speed Spindle: A Review

Experiment analysis of spindle performance with rolling bearing under non-uniform preload

Contact Info

Product

Resources

About