Design Method of Automatic Adjustment of Bearing Preload Based on Thermal Characteristic of Materials

Qing-dong, Yang

doi:10.3901/jme.2008.09.183

Cited by 11 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Li [108] established an axial dynamic stiffness model of a constant pressure preloaded spindle, derived the relations between the axial dynamic stiffness and axial load. With the increase of preload, the inner contact angle of bearing decreases, while the outer contact angle increases, furthermore, centrifugal force, gyro torque and spin-roll Bearing preload structure with double sleeve [105] ratio of ball decrease, contact deformation/stress/load and bearing stiffness of ball and inner/outer rings increase. The dynamic characteristic parameters of bearings under constant pressure preload are greatly affected by preload variation, but non-sensitive with the fixed position preload [109].…”

Section: Influence Of Preload Methods On Bearing Stiffnessmentioning

confidence: 99%

“…Hagiu [104] developed a feedback mechanism for maintain preload balance of spindle on the basis of analyzing the interaction of stress distribution, thermal expansion and assembly tolerance in bearing. Yang [105] designed a variable preload device with double-layer sleeve based on two unique thermal expansion materials through simulation verification, as shown in Fig. 22 [105].…”

Section: Other Bearing Preload Devicesmentioning

confidence: 99%

See 1 more Smart Citation

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

Section: Influence Of Preload Methods On Bearing Stiffnessmentioning

confidence: 99%

Section: Other Bearing Preload Devicesmentioning

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

show abstract

“…At present, mainly hydraulic, electromagnetic, and piezoelectric methods are being used worldwide in the studies on variable bearing preloads [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. For example, Jiang and Choi designed an adjustment mechanism based on the hydraulic preload force [ 2 , 3 ]; however, the use of hydraulic technology requires a complex hydraulic system, which is expensive.…”

Section: Introductionmentioning

confidence: 99%

“…Razban et al proposed a spring structure that can vary with speed to adjust the spindle preload force based on speed [ 8 ]; however, this method requires an additional structure. Yang et al proposed to use the difference in the axial expansion caused by the different thermal expansion coefficients of the double-layer sleeve materials to adjust the bearing preload force [ 9 ]. Although this method achieves preload force adjustment without changing the structure of the shaft system, it relies on the temperature effect.…”

Section: Introductionmentioning

confidence: 99%

Negative Poisson’s Ratio-Spacer Design and Its Thermo-Mechanical Coupling Analysis Considering Specific Force Output

et al. 2021

View full text Add to dashboard Cite

Aiming at the problems of a complex structure or poor controllability of the existing bearing preload control devices, a method of self-regulation via a negative Poisson’s ratio (NPR) spacer is proposed. Firstly, the principle of preload automatic adjustment at the bearing operation was introduced and the NPRs with three types of cell structures were analyzed. Furthermore, a thermo-mechanical coupling analysis model of the NPR spacer was established and the deformation and force output characteristics of the NPR spacer were studied and experimentally verified. It is found that the concave hexagonal cell structure has the optimal deformation characteristics for bearing preload adjustment. When the temperature is considered, the absolute value of Poisson’s ratio of the NPR spacer decreases as the speed increases and the elongation of the NPR spacer and the output forces are much larger than those without temperature consideration. With the increase in temperature or rotating speed, the axial elongation and output forces of the NPR spacer increases while the effect of temperature is relatively larger.

show abstract

“…In recent year spindle experts all over the world have done a lot of research on the bearing preload technology [1] . They mainly focused on the design of the bearing preload mechanism and the calculation of the optimum preload [2][3][4] . However, little investigation has been conducted on the assembling of the spindle, which determines the initial preload of the spindle, and the effect of bearing preload after spindle assembly on the dynamic characteristics of the spindlebearing system.…”

Section: Introductionmentioning

confidence: 99%

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Zhang¹,

Gao²,

Chen³

et al. 2017

JEMM

View full text Add to dashboard Cite

Angular contact ball bearings have been extensively utilized in machine tool spindles and the bearing preload plays a significant role on spindle stiffness, rotating precision, heat generation and service life span. With the development of high speed and high precision machining, especially for high speed grinding and milling, both heavy preload at low speed and light preload at high speed must been abled in series in a single machine tool spindle. In order to investigate the effect of the bearing preload on the performance of the spindle, we developed a spindle test rig. In this paper. The effect of bearing preload on the dynamic characteristics of the spindle-bearing system was investigated. The working principle of fixed position preloading method of the spindlebearing system are introduced. For the spindle that utilizing fixed position preloading method, the theory of assembly dimensional chain was applied to analyze the preloading state of the spindle-bearing system in static conditions. The equivalent parametric identification model was established. The finite element dynamic analysis model of the spindle assembly was developed by taking the advantage of the spring-damper elements to simulate the bearing supports. Finite element analysis (FEA) was conducted to evaluate the effect of the preload on the dynamic characteristics of the spindle-bearing system. This paper not only provides guidance on how to correctly assembling high speed and high precision spindle, but also lay a foundation for the investigation of thermal-mechanicaldynamic characteristic of high speed spindle-bearing system.

show abstract

Design Method of Automatic Adjustment of Bearing Preload Based on Thermal Characteristic of Materials

Cited by 11 publications

References 0 publications

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

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

Negative Poisson’s Ratio-Spacer Design and Its Thermo-Mechanical Coupling Analysis Considering Specific Force Output

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Contact Info

Product

Resources

About