CN105424367A - Rolling bearing high-speed vibration testing method - Google Patents

Rolling bearing high-speed vibration testing method Download PDF

Info

Publication number
CN105424367A
CN105424367A CN 201511019638 CN201511019638A CN105424367A CN 105424367 A CN105424367 A CN 105424367A CN 201511019638 CN201511019638 CN 201511019638 CN 201511019638 A CN201511019638 A CN 201511019638A CN 105424367 A CN105424367 A CN 105424367A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
vibration
bearing
speed
high
rolling
Prior art date
Application number
CN 201511019638
Other languages
Chinese (zh)
Inventor
王黎钦
侯萍萍
古乐
柏迎村
雷军
Original Assignee
哈尔滨工业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Testing of bearings
    • G01M13/045Testing of bearings by acoustic or vibration analysis

Abstract

The invention relates to a high-speed vibration testing method, in particular, a rolling bearing high-speed vibration testing method. Existing bearing detection methods all adopt low-speed detection, while, the actual working states of bearings are high-speed states, and as a result, the current low-speed detection means cannot meet the requirements for mastering the actual performance of the bearings, and detection data cannot meet the requirements of actual work. The rolling bearing high-speed vibration testing method of the invention includes following five steps that: step One: a high-speed rolling bearing vibration tester is built; step Two: the high-speed rolling bearing vibration tester is detected; step Three: a frequency converter is debugged, and a loading force F is applied; step Four: a band-pass filter is debugged; and step Five: vibration is evaluated. The rolling bearing high-speed vibration testing method of the invention has the advantages of reasonable design, simple operation and accurate and reliable detection results. The operation process of the rolling bearing high-speed vibration testing method simulates the work mode of a bearing in high-speed operation. The rolling bearing high-speed vibration testing method of the invention is used for measuring various kinds of performance of rolling bearings in high-speed rotation.

Description

一种滚动轴承高速振动测试方法 A rolling bearing vibrates at high speed test method

技术领域 FIELD

[0001] 本发明具体涉及一种滚动轴承高速振动测试方法。 [0001] The present invention particularly relates to a high-speed rolling method of vibration testing.

背景技术 Background technique

[0002] 在1993年,我国制定了规范轴承振动性能的首个轴承行业标准:《JB/T7047-93 滚动轴承深沟球轴承振动加速度技术条件》,并分别于1999年和2006年对其进行了修订。 [0002] In 1993, China developed a standardized bearing vibration performance of the first bearing industry standard: "JB / T7047-93 Rolling Deep groove ball bearings vibration acceleration technology", respectively in 1999 and 2006 was carried out amendments. 标准规范化了轴承的设计、生产和应用,对提升轴承的质量具有重大而深刻的影响,对轴承行业的活动具有重要的指导意义。 Standard standardized design, production and application of bearings, has a significant and profound impact on improving the quality bearings, it has an important guiding significance for the bearing industry activities. 但是现行的轴承振动检测标准,无论是国标还是行标,对高速运行的轴承振动的评价还有不足,具体表现为以下几点: But the existing bearing vibration testing standards, either GB or Industry Standard, the evaluation of bearing vibration of high-speed operation as well as lack of specific performance in the following points:

[0003] -、单一的采用均方根值来评价轴承的振动大小存在一定的概括性,即使增加峰值作为辅助检测指标,共同对轴承进行振动等级进行评价会存在差异性。 [0003] - the single rms value is evaluated using certain general magnitude of vibration of the bearing, even if the increase of the peak detector as an auxiliary indicator, bearing vibration levels jointly evaluate differences exist.

[0004] 二、在不同工况条件下轴承振动不同,国标中对于较小尺寸段的轴承,采用的较高转速在2400r/min到3600r/min,而目前磨削类高速电主轴的转速高达60000r/min,高速下表现的振动行为不同于低速下的振动行为,因此不能以低速的测量值代表高速工况下的振动,也不能表征轴承作为整机中的一个部件时的振动。 [0004] Second, under different working conditions different bearing vibration, the national standard of the bearing section smaller size, higher speed used in 2400r / min to 3600r / min, and the current ground-based high-speed spindle speeds up 60000r / min, the vibration behavior of the vibration behavior of the high speed at low speed is different from, and therefore can not be representative of the vibration measurements low-speed operating conditions, it can not be characterized as a vibration of a bearing member of the machine. 因此,标准检测的轴承振动性能不能完全用于表征高速工况条件下轴承振动特征。 Accordingly, standard detection vibration bearing performance is not fully characterized for vibrating at a high speed wherein the bearing operating conditions.

[0005] 三、目前对轴承振动普遍采用接触式传感器,通过弹簧以一定的接触力将传感器触头抵在轴承外圈上。 [0005] Third, the current commonly used for bearing vibration touch sensor, the spring constant of the contact force sensor chip against the bearing outer ring. 接触力应大于mXa,其中m为运动部分的质量,a为所测的最大加速度,以防止传感器与轴承外圈脱离接触。 Should be greater than the contact force MxA, where m is the mass of moving parts, a is the measured maximum acceleration, the bearing outer ring to prevent disengagement of the sensor. 但是标准并没有对传感器接触力的大小予以量化规定,因此在测量中会由此带来较大误差。 However, the standard does not quantify the magnitude of a predetermined contact force sensor, thus resulting in a large error in the measurement.

[0006] 四、测振过程中,为了限定轴承的运动学条件,一般应对轴承施加一定的载荷。 [0006] Fourth, during vibration, in order to define the kinematic conditions of the bearing, generally deal with a certain load applied to the bearing. 所施加的载荷应适当,防止滚动体相对内、外套圈滚道打滑但又不致引起变形而影响测量结果。 The applied load should be appropriate to prevent the rolling elements relative to, the outer ring raceway slip but does not cause deformation affect the measurement results. 国标中对轴承外径在25~50mm、接触角在10°~30°的角接触球轴承施加轴向载荷的设定值为90~110N。 GB bearings in the outside diameter 25 ~ 50mm, the contact angle at the corner of 10 ° ~ 30 ° contact ball bearing axial load is applied is set to a value of 90 ~ 110N. 轴向载荷是影响轴承振动的主要因素之一,20N的轴向力的变化范围直接影响轴承振动测量值的波动。 Axial load bearing one of the main factors of vibration, the axial force varies directly 20N fluctuations bearing vibration measurement values.

[0007] -个批次的轴承在出厂时,轴承厂家对对轴承振动进行了标准轴承振动测量,当这一批次的接受质量限AQL是供方能够保证稳定达到的实际质量水平,是用户能够接受的产品质量水平满足设定要求时就出厂,这时就造成两个根本存在的问题。 [0007] - batch at the factory bearings, bearing manufacturers of the standard bearing vibration bearing vibration, when the receiving quality of the batch is limited AQL supplier can guarantee the quality of the actual level of stability achieved, the user when it is shipped acceptable level of quality products to meet the set requirements, then it causes two fundamental problems. 第一个问题是同一批次轴承的振动性能的不同,甚至出现轴承振动过大的现象。 The first problem is different vibrational properties of the same batch of bearings, bearing even excessive vibration phenomenon. 第二个问题是标准轴承振动测量时的转速较低,而在实际应用过程中轴承的转速较高,在低速和高速情况下轴承的振动行为的不同,也就造成了低速振动性能好而高速情况下轴承的振动性能差的问题。 The second problem is that the standard rotational speed when the lower bearing vibration, and higher bearing speed in the actual application process, different vibration behavior at low and high speeds of the bearing, thus causing the low-speed high speed vibration performance bearing in case of poor performance vibration problems. 以上问题都亟待解决。 The above problems are solved.

发明内容 SUMMARY

[0008] 现有轴承的检测方法均是低速检测,而轴承实际工作状态通常是在高速下运行, 目前低速检测手段无法满足对轴承实际性能的掌握,检测数据无法满足实际工作需要。 Detection [0008] existing bearings are low-speed detection, and bearing the actual working conditions are usually run at high speed, low current detection methods can not meet the grasp of the actual performance of the bearing, test data can not meet the actual operational needs. 为解决这一问题,本发明提出一种滚动轴承高速振动测试方法。 To solve this problem, the present invention provides a high-speed rolling method of vibration testing.

[0009] 本发明为解决上述技术问题采取的技术方案是: [0009] The present invention is to solve the above problems taken technical solution:

[0010] 一种滚动轴承高速振动测试方法,所述方法包括以下步骤: High-speed vibration test, the method [0010] A rolling bearing comprising the steps of:

[0011] 步骤一:搭建滚动轴承高速振动测量仪:建立滚动轴承高速振动测量仪,根据滚动轴承标准轴承测量仪的搭建精度要求对滚动轴承高速振动测量仪进行搭建,在此基础上并扩充滚动主轴标准振动测量仪的转速范围,使用高性能加速度传感器检测轴承高速工况下振动; [0011] Step a: built rolling high speed vibration measuring instrument: establishing Rolling-speed vibration measuring instrument, according to building precision rolling standard bearing gauge requirements rolling high speed vibration measuring instrument for building, based on this and expand standard vibration measurements rolling spindle instrument speed range, using the high-speed high-performance acceleration sensor detects bearing vibration conditions;

[0012] 步骤二:检测滚动轴承高速振动测量仪:检测滚动轴承高速振动测量仪的使用性能,当其同时满足滚动轴承标准振动测量仪标准及高速的要求时,等待进行高速工况下滚动轴承振动检测工作;当其未达到标准振动测试仪及高速的要求时,重复步骤一直至同时满足标准振动测试仪标准及高速的要求,同时对滚动轴承高速振动测量仪中的驱动主轴的转速η进行测定,测定滚动轴承高速振动测量仪中加载弹簧在未压缩时的长度; [0012] Step Two: detecting a high speed rolling vibration measuring instrument: detecting performance of high speed rolling bearing vibration measuring instrument, and when it satisfied the standard rolling vibration measuring instrument standards and requirements of high speed, high speed condition to wait for rolling vibration detecting operation; when it does not reach the standard of vibration tester and high speed requirements, repeat steps have to meet criteria vibration tester standard and high-speed requirements, while the speed of the drive spindle rolling high speed vibration measuring instrument of η is measured, the measurement rolling high speed vibration measuring instrument is loaded when the uncompressed spring length;

[0013] 步骤三:调试变频器以及加载力F的施加过程:首先由于滚动轴承高速振动测量仪中的驱动主轴的转速η已确定,根据公式f=η/60计算出变频器设定频率f,根据计算出的变频器设定频率f对变频器进行参数无级调速,其次设定滚动轴承高速振动测量仪中轴向加载装置中加载力F的数值,根据弹簧载荷与压缩距离之间的曲线图对照出加载力F对应的加载弹簧需要压缩的长度,通过操作轴向加载装置中的加载手柄对加载弹簧逐渐进行压缩直至试验轴承承受的加载力达到F值为止;再次将传感器组件中的检测头贴紧在试验轴承的外圈上,同时将传感器组件的信号输出端连接在DH5909动态信号分析仪上,实时监测试验轴承的振动状态和存储振动数据;然后启动滚动轴承高速振动测量仪,试验轴承在滚动轴承高速振动测量仪中进行转动,最后当试验轴承运行达到平 [0013] Step Three: adjustment of the inverter and the load force F is applied to the process: First, as the rotational speed of the drive spindle of a high speed rolling bearing vibration measuring instrument [eta] in has been determined, to set the drive frequency f is calculated according to the formula f = η / 60, is set based on the calculated drive frequency f of the variable speed drive parameters, followed by high-speed rolling bearing vibration measuring instrument set in the axial loading means loads the value of the force F, according to the distance between the curve and a compression spring load FIG spring loaded control the loading force F corresponding to the length needs to be compressed, by operating the charging handle axial loading device for loading force of the compression spring gradually loaded until the bearings under test reaches a value F; again detecting sensor assembly head snapping on the outer ring of the test bearing, while the signal output terminal is connected to the sensor assembly DH5909 dynamic signal analyzer, the vibration state and store data real-time monitoring of vibration of the test bearing; a high speed and then start rolling vibration measuring instrument, test bearing in the high-speed rotation of the rolling bearing for vibration measuring instrument, and finally reached the level when the test operation of the bearing 稳状态时,开始对试验轴承进行多组数据的采集,通过传感器组件的检测头将采集平稳的振动数据传递到动态信号分析仪中; The steady state, the start of the test bearing sets of data acquisition, by detecting the sensor head assembly smoothly collected vibration data transmitted to the dynamic signal analyzer;

[0014] 步骤四:带通滤波器的调试:将butterworth带通滤波器进行调试,使其在符合GB/T24610. 1-2009/IS015242-1 :2004的标准下,butterworth带通滤波器的带通频率在50-10000HZ之间; [0014] Step Four: the bandpass filter debug: debug butterworth bandpass filter, so that in line with GB / T24610 1-2009 / IS015242-1:. 2004 standard, with a band-pass filter butterworth pass frequency between 50-10000HZ;

[0015] 步骤五:振动评价过程:使用调试后的滤波器对动态信号分析仪中的数据进行处理,然后求振动幅值的均方根值和峰值,依据公式1 = 2C)1gf求得振动加速度等级,式中L "0. 为振动加速度级,a为某一频率范围内的振动加速度均方根值或轴承振动加速度峰值,a。为参考加速度,其值为9. 81X10 3m/s2,最后根据JB/T 7047-2006中加速度振动等级划分轴承标准对试验轴承的振动情况进行评价。 [0015] Step Five: vibration evaluation process: the used filter debugging dynamic signal analyzer data is processed, and then seeking the vibration amplitude of the peak and the rms value, the vibration is obtained according to the formula 1 = 2C) 1gf acceleration level, wherein L "0. vibration acceleration level, a is the peak value or the rms vibration acceleration bearing vibration acceleration within a certain frequency range, a. a reference acceleration, a value of 9. 81X10 3m / s2, Finally, evaluation of the vibration test bearing according to JB / T 7047-2006 vibration acceleration grading standard bearings.

[0016] 本发明与现有技术相比的有益效果: [0016] the present invention compared to the prior art advantages:

[0017] 1、本发明提出以标准轴承振动测量仪为基础,搭建一个在满足标准轴承振动测量仪的测量,也能满足目前高速的工况条件的高速轴承振动测量仪,本发明是一种在搭建的试验台上进行轴承高速工况条件下的振动测量方法。 [0017] 1, the present invention proposes a standard bearing vibration measuring instrument based build a measure to meet the bearing vibration measuring instrument, but also to meet the current speed bearing vibration measuring instrument of the working conditions of the high speed, the present invention is a method for vibration measurement at high speed operating conditions in the bearing test rig built. 本发明能够实现对高速轴承的振动进行合理的测量和正确的评价,以符合前高速工况条件轴承dm·η的量级达ΚΓ6的要求。 The present invention enables high speed bearing vibration measurements of reasonable and proper evaluation, a high speed to conform to the front bearing operating conditions of the order dm · η ΚΓ6 requirements.

[0018] 2、本发明既能够测量试验轴承在标准轴承振动测量仪给定工况条件下的振动,这为轴承在高速工况下的振动评价提供了理论依据,同时又能满足试验轴承在高速工况下轴承的振动测量。 [0018] 2, the present invention is capable of measuring both standard test bearings in bearing vibration measuring device vibrations given operating conditions, which provides the theoretical basis for the evaluation of the vibration conditions of the high-speed bearing, while meeting the test bearings High-speed bearing vibration measurement conditions.

[0019] 3、本发明结合工程实际需要,合理设定轴承试验工况条件,对轴承提前进行高速工况条件下振动评价,减少轴承在使用过程中带来的经济损失。 [0019] 3, the present invention in conjunction with engineering requirements, a reasonable set of bearing test working conditions, the vibration of the bearing at high speed operating conditions evaluated in advance, reduce the bearing during use caused economic losses.

附图说明 BRIEF DESCRIPTION

[0020] 图1是本发明的的流程框图; [0020] FIG. 1 is a flow diagram of the present invention;

[0021] 图2是弹簧载荷与压缩距离之间的曲线图; [0021] FIG. 2 is a graph showing the spring load and the distance between the compression;

[0022] 图3是滚动轴承高速振动测量仪主视结构示意图; [0022] FIG. 3 is a front schematic structural view of a high speed rolling bearing vibration measuring instrument;

[0023] 图4是传感器定位装置3的主视结构示意图; [0023] FIG. 4 is a schematic front view of a sensor structure positioned means 3;

[0024] 图5是图2的俯视结构示意图; [0024] FIG. 5 is a schematic top view of the structure of Figure 2;

[0025] 图6是传感器组件3-5的主视结构剖面图; [0025] FIG. 6 is a structural cross-sectional front view of the sensor assembly of FIG. 3-5;

[0026] 图7是轴向加载装置2的主视结构示意图; [0026] FIG. 7 is a schematic front view of an axial loading device structure 2;

[0027] 图8是轴向加载装置2的俯视结构剖面图; [0027] FIG 8 is an axial sectional view of a top loading configuration of the apparatus 2;

[0028] 图9是轴承的打滑率随轴向力的变化的曲线图; [0028] FIG. 9 is a bearing with slip ratio of the axial force variation graph;

[0029] 图10是不同预紧力下轴承的振动幅值的分布图; [0029] FIG. 10 is a distribution diagram of the vibration amplitude at different preload bearing;

[0030] 图11是标准轴承振动测量仪的振动检测结果柱状图; [0030] FIG. 11 is a vibration detection result of the standard bearing vibration measuring instrument histogram;

[0031] 图12是标准轴承振动测量仪的振动等级评价柱状图; [0031] FIG. 12 is a bearing vibration level evaluation criteria vibration measuring instrument of the histogram;

[0032] 图13是本发明的振动检测结果的柱状图; [0032] FIG. 13 is a graph of the vibration detection result of the present invention;

[0033] 图14是本发明的试验轴承振动等级评价柱状图; [0033] FIG. 14 is a histogram evaluation test bearing vibration level of the present invention;

[0034] 图15是本发明两次振动检测的对比分析图; [0034] FIG. 15 is a comparative analysis of the two vibration detecting the present invention;

[0035] 图16是均方根随速度变化的第一曲线图; [0035] FIG. 16 is a graph showing a first speed variation with RMS;

[0036] 图17是均方根随速度变化的第二曲线图; [0036] FIG. 17 is a graph showing a second speed variation with RMS;

[0037] 图18是驱动主轴5在变频器的带动下的转速标定曲线图; [0037] FIG. 18 is a calibration curve speed drive spindle 5 driven by the inverter in FIG.'S;

[0038] 图19是加载力标定曲线图; [0038] FIG. 19 is a graph showing the biasing force of the calibration;

[0039] 图20是轴承振动随予紧力变化曲线图; [0039] FIG. 20 is a bearing vibration with pretension force variation graph;

[0040] 图21是50-10000HZ带通滤波器的第一特性曲线图; [0040] FIG. 21 is a characteristic graph showing 50-10000HZ a first band-pass filter;

[0041] 图22是50-10000HZ带通滤波器的第二特性曲线图。 [0041] FIG. 22 is a characteristic graph showing 50-10000HZ second bandpass filter.

具体实施方式 Detailed ways

具体实施方式[0042] 一:结合图1至图22说明本实施方式,本实施方式中所述方法包括以下步骤: DETAILED DESCRIPTION [0042] a: Figures 1 to 22 in conjunction with the present embodiment described embodiment, the present embodiment the method comprises the steps of:

[0043] 步骤一:搭建滚动轴承高速振动测量仪:建立滚动轴承高速振动测量仪,根据滚动轴承标准轴承测量仪的搭建精度要求对滚动轴承高速振动测量仪进行搭建,在此基础上并扩充滚动主轴标准振动测量仪的转速范围,使用高性能加速度传感器检测轴承高速工况下振动;本步骤中扩充滚动主轴标准振动测量仪的转速最高达到60000r/min; [0043] Step a: built rolling high speed vibration measuring instrument: establishing Rolling-speed vibration measuring instrument, according to building precision rolling standard bearing gauge requirements rolling high speed vibration measuring instrument for building, based on this and expand standard vibration measurements rolling spindle instrument speed range, using the high-speed high-performance acceleration sensor detects bearing vibration conditions; this step expansion rolling spindle vibration measuring instrument standard rotation speed up to 60000r / min;

[0044] 步骤二:检测滚动轴承高速振动测量仪:检测滚动轴承高速振动测量仪的使用性能,当其同时满足滚动轴承标准振动测量仪标准及高速的要求时,等待进行高速工况下滚动轴承振动检测工作;当其未达到标准振动测试仪及高速的要求时,重复步骤一直至同时满足标准振动测试仪标准及高速的要求,同时对滚动轴承高速振动测量仪中的驱动主轴5 的转速η进行测定,测定滚动轴承高速振动测量仪中加载弹簧2-1在未压缩时的长度; [0044] Step Two: detecting a high speed rolling vibration measuring instrument: detecting performance of high speed rolling bearing vibration measuring instrument, and when it satisfied the standard rolling vibration measuring instrument standards and requirements of high speed, high speed condition to wait for rolling vibration detecting operation; when it does not reach the standard of vibration tester and high speed requirements, repeat steps have to meet criteria vibration tester standard and high-speed requirements, while the speed of the drive shaft rolling high speed vibration measuring instrument 5 in η is measured, the measurement Rolling High-speed vibration measuring instrument is loaded when the length of the spring 2-1 uncompressed;

[0045] 步骤三:调试变频器以及加载力F的施加过程:首先由于滚动轴承高速振动测量仪中的驱动主轴5的转速η已确定,根据公式f=η/60计算出变频器设定频率f,根据计算出的变频器设定频率f对变频器进行参数无级调速,其次设定滚动轴承高速振动测量仪中轴向加载装置2中加载力F的数值,根据弹簧载荷与压缩距离之间的曲线图对照出加载力F对应的加载弹簧2-1需要压缩的长度,通过操作轴向加载装置2中的加载手柄2-6对加载弹簧2-1逐渐进行压缩直至试验轴承4承受的加载力达到F值为止;再次将传感器组件3-5中的检测头贴紧在试验轴承4的外圈上,同时将传感器组件3-5的信号输出端连接在DH5909动态信号分析仪上,实时监测试验轴承4的振动状态和存储振动数据;然后启动滚动轴承高速振动测量仪,试验轴承4在滚动轴承高速振动测量仪中进行转动,最后当试 [0045] Step Three: adjustment of the inverter and the biasing force F is applied to the process: First, high-speed rolling since the speed of the drive shaft vibration measuring instrument 5 [eta] has been determined, setting the drive frequency f is calculated according to the formula f = η / 60 is set based on the calculated drive parameters of the frequency f of the inverter variable speed, followed by setting the value of the biasing force F Rolling speed vibration measuring instrument in an axial loading device 2 according to the distance between the spring and the compression load a graph illustrating the control spring loaded loading force F corresponding to the length of 2-1 needs to be compressed, by the axial load operating handle 2 2-6 2-1 progressively loaded spring loaded compression until the test bearings subjected to the loading device 4 the force F reaches the value; sensor assembly 3-5 detection head again close contact to the outer ring of the test bearing 4, while the signal output terminal is connected to the sensor assembly 3-5 on DH5909 dynamic signal analyzer, real-time monitoring and storing the test bearing vibration state of the vibration data 4; then start the high-speed rolling vibration measuring instrument, test bearing 4 is rotated at a high speed rolling bearing vibration measuring instrument, and finally when the test 轴承4运行达到平稳状态时,开始对试验轴承4进行多组数据的采集,通过传感器组件3-5 的检测头将采集平稳的振动数据传递到动态信号分析仪中;本步骤中驱动主轴5的转速η 是根据试验要求确定的,驱动主轴5的转速η的上限就是指滚动主轴标准振动测量仪的最高转速,即60000r/min; 4 bearing run reached a plateau, the test bearing 4 start to collect multiple sets of data, by detecting the sensor head assembly 3-5 collected vibration data transmitted smoothly to the dynamic signal analyzer; this step the drive spindle 5 η is determined according to the speed test requirements, η 5 drive spindle speed limit refers to the maximum speed of the spindle standard rolling vibration measuring instrument, i.e., 60000r / min;

[0046] 步骤四:带通滤波器的调试:将butterworth带通滤波器进行调试,使其在符合GB/T24610. 1-2009/IS015242-1 :2004的标准下,butterworth带通滤波器的带通频率在50-10000HZ之间; [0046] Step Four: the bandpass filter debug: debug butterworth bandpass filter, so that in line with GB / T24610 1-2009 / IS015242-1:. 2004 standard, with a band-pass filter butterworth pass frequency between 50-10000HZ;

[0047] 步骤五:振动评价过程:使用调试后的滤波器对动态信号分析仪中的数据进行处理,然后求振动幅值的均方根值和峰值,依据公式1 = 2C)1gf求得振动加速度等级,式中L 为振动加速度级,a为某一频率范围内的振动加速度均方根值或轴承振动加速度峰值,a。 [0047] Step Five: vibration evaluation process: the used filter debugging dynamic signal analyzer data is processed, and then seeking the vibration amplitude of the peak and the rms value, the vibration is obtained according to the formula 1 = 2C) 1gf acceleration level, where L is the vibration acceleration level, a is a root mean square value or the peak value of vibration acceleration bearing vibration acceleration within a certain frequency range, a. 为参考加速度,其值为9. 81X10 3m/s2,最后根据JB/T7047-2006中加速度振动等级划分轴承标准对试验轴承4的振动情况进行评价。 Is a reference acceleration, a value of 9. 81X10 3m / s2, the final evaluation of the test bearings 4 according to the vibration acceleration of vibration grading standard bearing JB / T7047-2006.

[0048] 本发明中步骤一中提到的标准轴承振动测试仪的搭建要求为基于的国家标准GB/ T24610. 1-2009/IS015241-1:2004 和GB/T24610. 1-2009/IS015241-2:2004,根据以上标准对滚动轴承高速振动测量仪进行搭建即可。 [0048] Vibration Test standard bearing structures of the present invention, a step is mentioned in the claim is based on the national standard GB / T24610 1-2009 / IS015241-1:.. 2004 and GB / T24610 1-2009 / IS015241-2 : 2004, high speed rolling bearing according to the above criteria vibration measuring instrument can be built.

[0049] 本发明是针对轴承在高转速下振动的测试方法。 [0049] The present invention is directed to bearing vibration test methods at high speeds. 本方法是以标准轴承振动测量仪为基础,然后扩展标准轴承振动测量仪的转速范围,使得搭建的高速轴承振动测量仪既能完成轴承在标准下的振动测量,又能在此基础上完成轴承在高速工况下的振动测量。 This method is based on a standard bearing vibration measuring instrument is based on standard and extended speed range of bearing vibration measuring instrument, so that high-speed bearing structures both to complete the vibration measuring instrument bearing vibration measurement in the standard, but also on the basis of complete bearing in high speed conditions of vibration measurement. 首先根据标准轴承振动测量仪的设备要求确定高速轴承测量仪各部件的精度,如传感器的灵敏度、主轴回转精度等。 Determining the accuracy of each member of the first speed bearing apparatus according to claim standard gauge bearing vibration measuring instrument, such as sensitivity, precision spindle turning sensor, and the like. 按照轴承使用工况要求确定轴承加载装置和主轴转速的参数,然后搭建高速轴承振动测试试验台。 Bearing according to use conditions to determine the parameters required loading device bearing and spindle speed, then high speed bearing structures Vibration test platform. 在搭建的试验台上进行轴承在高速工况下的振动测量,进而评价轴承高速振动。 Ball bearings in high vibration measurement conditions on a test bed built, in order to evaluate high-speed bearing vibration. 该方法既具有理论依据又有实践意义,结果准确,能够广泛用于轴承在高速工况条件下的测量。 This method has both theoretical but also practical significance, and accurate, and can be widely used for measuring the bearing at high speed working conditions.

[0050] 实现本发明所用的滚动轴承高速振动测量仪包括试验台1、轴向加载装置2、传感器定位装置3、驱动主轴5和总底座7,所述总底座7水平设置,所述试验台1设置在总底座7上,所述传感器定位装置3设置在试验台1上,所述传感器定位装置3的一侧设置有轴向加载装置2,所述传感器定位装置3的另一侧设置有驱动主轴5 ; [0050] achieve high-speed rolling bearing vibration measuring instrument used in the present invention comprises a test bed 1, the axial loading device 2, the sensor locating device 3, the drive spindle 5 and the base 7 of the total, the total level of the base 7 is provided, the test bed 1 7 disposed in the total of the base, said sensor positioning means 3 is provided on the test stand 1, the positioning means provided on the side sensor 3 has an axial loading device 2, a sensor is provided on the other side of the drive positioning device 3 spindle 5;

[0051] 所述传感器定位装置3包括定位底座3-1、定位梁3-2、横梁3-3、丝杠3-4、传感器组件3-5和两个光杆3-6,所述定位底座3-1固定连接在试验台1上,两个光杆3-6并列竖直设置在定位底座3-1上,所述横梁3-3与定位底座3-1相平行且所述横梁3-3的底部与两个光杆3-6的顶端固定连接,所述两个光杆3-6上套装有定位梁3-2,所述定位梁3-2沿光杆3-6的长度方向上下往复移动,所述定位梁3-2上穿设有竖直设置的丝杠3-4,所述定位梁3-2上设置有传感器组件3-5,试验轴承4位于定位底座3-1和定位梁3-2之间,所述试验轴承4套装在驱动主轴5上且该试验轴承4通过轴向加载装置2顶紧在驱动主轴5上, 所述传感器组件3-5的检测头与试验轴承4的外圈相贴紧。 [0051] The positioning device 3 comprises a positioning sensor base 3-1, 3-2 positioning beams, beams 3-3, 3-4 screw, the sensor assembly and the two rod 3-5 3-6, the positioning of the base 3-1 is fixedly connected on the test stand 1, two parallel vertical rod 3-6 is provided on the positioning of the base 3-1, 3-3 and the beam is positioned parallel to the base 3-1 and 3-3 the beam the bottom two light rods fixedly connected to the top of 3-6, 3-6 on the two bars of light beam positioning suit 3-2, 3-2 the longitudinal direction of the beam positioning rod 3-6 is moved in the vertical reciprocating, the positioning screw is provided vertically through the beam provided 3-4 3-2, is provided with the positioning sensor assembly on the beam 3-2 3-5, the test bearing 4 is positioned and the positioning of the base beams 3 3-1 between -2, 4 bearing the test set and the test bearing 4 through the axial loading device 2 tightly on the drive spindle 5, said sensor assembly for detecting the head 3-5 and the test bearing 4 on the drive spindle 5 in close contact with the outer ring. 所述传感器定位装置3还包括锁紧手柄3-7,锁紧手柄3-7位于横梁3-3的顶面上且其平头螺栓朝向丝杠3-4设置。 The positioning device 3 further comprises a sensor lock handle 3-7, 3-7 locking handle on the top surface of the beams 3-3 and the flat head bolt toward its screw 3-4 provided.

[0052] 所述传感器定位装置3还包括两个滑动轴承3-8,所述定位梁3-2沿其厚度方向加工有两个通孔,每个通孔内设置有一个滑动轴承3-8,滑动轴承3-8与光杆3-6 -一对应设置,每个光杆3-6穿设在其对应的滑动轴承3-8上,所述定位梁3-2通过两个滑动轴承3-8 与两个光杆3-6滑动配合。 [0052] The sensor positioning means further comprises two sliding bearings 3 3-8, 3-2 of the positioning beam machining two through holes in its thickness direction, each through hole is provided with a slide bearing 3-8 sliding bearings 3-8 and 3-6 rod - a set corresponding to each light is provided on the rod 3-6 through its corresponding slide bearing 3-8, the positioning beams by two sliding bearings 3-8 3-2 3-6 with two rod sliding fit.

[0053] 轴向加载装置2包括加载弹簧2-1、紧固螺母2-2、加载盘2-3、柔性爪2-4、加载底座2-5和加载手柄2-6,利用加载弹簧2-1产生的弹性力通过加载盘2-3和柔性爪2-4传递给试验轴承4,进而实现对试验轴承4的加载。 [0053] The axial loading device 2 comprises a spring-loaded 2-1, 2-2 fastening nut, the loaded disk 2-3, the flexible claw 2-4, 2-5 and a base load charging handle 2-6, using a spring loaded 2 -1 elastic force generated is transferred through the loading disc 2-4 to 2-3 and the test bearing flexible tabs 4, so as to realize the loading of the test bearing 4. 加载力的大小通过加载手柄2-6取决于加载弹簧2-1的刚度及加载弹簧2-1的压缩量,而且可以通过调节紧固螺母2-2来调节。 Loaded by the biasing force of magnitude depending on the stiffness of the spring charging handle 2-6 2-1 2-1 amount of spring compression and loading, and 2-2 can be adjusted by adjusting the tightening nut. 加载弹簧2-1的弹性力将轴向负荷传递给试验轴承4。 Loading the elastic force of the spring 2-1, axial load is transmitted to the test bearing 4.

[0054] 滚动轴承高速振动测量仪还包括多个减震器6,所述试验台1内为空心结构,所述多个减震器6排列在试验台1内。 [0054] High speed rolling vibration measuring instrument further comprises a plurality of damper 6, a test station within a hollow structure, said plurality of damper 6 arranged in a test station.

[0055] 滚动轴承高速振动测量仪的优点为它能满足现行国家标准下对轴承的振动检测, 又能扩展试验条件,检测高速工况条件下轴承的振动。 The [0055] advantages of high speed rolling bearing vibration measuring instrument as it satisfies current national standard of vibration detection bearings, but also extended test conditions, detecting vibration of the bearing at high speed operating conditions. 其检测的指标包括测量轴承尺寸范围、振动测值范围、主轴转速、频带范围、轴向加载、传感器预紧力。 Detecting comprises measuring indicators bearing size range, the range of the vibration measurement value, spindle speed, frequency range, the axial load, sensor preload. 建立高速轴承振动测量试验台按照国家标准的要求,兼顾实际使用需求设计相关指标,既能满足国家标准对轴承振动测量仪的规定,又能检测轴承在高速运转下的振动。 Establish a high-speed bearing vibration test stand in accordance with the requirements of national standards, taking into account the actual needs of design-related indicators, both to meet the national standard regulations bearing vibration meter, vibration at high speeds and can detect bearings. 通过轴向加载装置2和驱动主轴5之间配合设置实现对试验轴承的固定工作。 Is provided with a fixed work achieved by axial loading test bearing means between the drive spindle 2 and 5. 传感器定位装置3能够实现对试验轴承的检测工作。 Positioning sensor means 3 enables the detection operation of the test bearings. 传感器定位装置3中传感器组件的频率响应范围最高能够达到20KHz。 3 the frequency response range of the sensor assembly sensor positioning device can achieve the highest 20KHz.

[0056] 滚动轴承高速振动测量仪还包括附属设备,该附属设备包括调节驱动主轴5转速的变频器、控制驱动主轴5温度的冷却箱和采集轴承振动数据的数据采集系统。 [0056] High speed rolling vibration measuring instrument further comprises attachment device, the accessory device comprises a frequency converter adjusting speed drive spindle 5, the control and data acquisition system cooling tank bearing vibration data acquisition drive spindle 5 temperature. 使用传感器定位装置3设定传感器与试验轴承4表面接触的位置,使用轴向加载装置2对试验轴承4施加一定的轴向力,设置变频器调节相应转速,按照驱动主轴5的说明书中使用要求设定冷却箱的温度,使用市售的轴承动态信号分析仪采集和监测轴承振动,评定试验轴承4在高速下的振动状态。 3 using a sensor positioning device 4 is set in surface contact with the test bearing position sensor using axial loading device 2 is applied to the test bearing 4 a certain axial force, rotational speed of the respective adjustment drive is provided, in accordance with the specification requirements of the drive spindle 5 setting the temperature of the cooling tank, using a commercially available dynamic signal analyzer acquires bearings and bearing vibration monitoring, assessment of the vibrational state of the test bearing 4 at high speed.

[0057] 结合本发明的有益效果说明以下实施例: [0057] The advantageous effects of the present invention in conjunction with the following description of embodiments:

[0058] 实施例一:结合附图16说明本实施例,本实施例为验证轴承在高速和低速下有不同的振动状态,说明滚动轴承在高速的振动评价不能够使用低速下振动表征。 [0058] Example a: 16 described in conjunction with the accompanying drawings of the present embodiment, the present embodiment is verified bearing different vibration state at high speed and low speed, low speed rolling vibration characterization described can not be used in the evaluation of high-speed vibration. 选择在上述验证试验中编号为03#和15#轴承,从上述验证试验中可以看出03#轴承的振动较大,而15#轴承的振动等级小,现分别将上述两个轴承在滚动轴承高速振动测量仪上进行高速振动试验。 In the selected verification test number # 03 # 15 and bearing from the verification test can be seen in a larger bearing vibration # 03, # 15 and small bearing vibration levels, respectively, are in the above-described two-speed rolling bearing high-speed vibration vibration test meter. 由图16轴承振动信号均方根随速度变化曲线可以明显的看出: With the speed variation can be clearly seen from FIG bearing 16 rms vibration signals:

[0059] 1)轴承的振动大小随着轴承转速的提高总体上是呈现增大的趋势,尤其是在速度超过一定程度后,均方根值会迅速增大; Vibration Size [0059] 1) with bearings on bearing speed increase is generally exhibit a tendency to increase, especially after the speed exceeds a certain level, the RMS value increases rapidly;

[0060] 2)标准检测振动等级最差、振动状态最恶劣的3#轴承,在高速条件下的振动情况明显要好于标准振动检测等级最好的15#轴承,因此可以说明在低速条件下进行的标准轴承振动检测并不能代表高速条件下轴承的振动情况,有时甚至会有完全相反的结果。 [0060] 2) Standard worst detecting vibration level, vibration state of the worst 3 # bearing, vibration at high speed is significantly better than the best grade vibration detection standard # 15 bearings, can be carried out at low speed described the standard bearing vibration detection does not represent the vibration of the bearing at high speed, and sometimes even have the opposite result.

[0061] 实施例二:结合附图17说明本实施例,本实施例为试验轴承4在不同转速下的振动测量,从上述试验台验证试验中选出6套,分别为03#、06#、08#、16#、11#、15#轴承,在高速轴承振动测量仪上进行不同转速下的轴承振动试验,使用均方根RMS来表征轴承的振动情况,分析结果如图得出的轴承振动结果。 [0061] Example II: 17 illustrates the present embodiment in conjunction with the accompanying drawings embodiment, the present embodiment is a vibration measurement test bearing 4 at different speeds, the test selected from the six sets of verification test bed, respectively, # 03, # 06 , # 08, # 16, # 11, # 15 bearings, the bearings in high-speed bearing vibration measuring instrument vibration test at different speeds, to characterize the vibration of the bearing using the rMS root mean square, bearing the analysis results obtained in FIG. vibration results. 均方根值反映振动信号的总体能量,均方根值越大说明振动越大。 RMS value reflects the overall energy of the vibration signal, the greater the larger the rms value of the vibration. 通过附图17可以看出随着转速的升高,6套轴承的RMS值均增加,振动均加剧。 As can be seen from Figure 17 increase speed, the RMS value of the bearing sleeve 6 are increased, the vibration was intensified.

[0062] 实施例三:结合说明书附图12至15可知,本实施例为利用标准轴承检测仪进行振动检测。 [0062] Example III: in conjunction with the accompanying drawings can be seen 12 to 15, the present embodiment is a detector using standard bearings for vibration detection. 利用S0910-II轴承振动加速度测量仪对29套试验轴承进行标准振动检测,三次振动检测结果如图11所示,轴承振动等级评价如图12所示。 S0910-II using a bearing vibration acceleration measuring instrument to the test bearing sleeve 29 standard vibration detector, three vibration detection results shown in Figure 11, bearing vibration levels evaluated as shown in Fig.

[0063]对经过标准轴承振动测量仪检测的29套轴承,采用完全相同的测试条件和测试方法,利用本发明再次检测,三次振动检测结果图13所示,轴承振动等级评价如图14所示。 [0063] After the standard bearings of the detected vibration measuring instrument 29 set bearing, in exactly the same test conditions and test method, with the present invention is again detected, the detection results shown in FIG three vibration, bearing vibration levels 14 13 Evaluation .

[0064]通过对比可知,本发明建立旨在覆盖标准轴承振动测量仪的基础上,能够提供更高的速度条件,测量轴承在不同转速条件下的振动数据29套试验轴承分别经过S0910-II 型轴承振动加速度测量仪和滚动轴承高速振动测量仪的检测,对比分析两次振动检测和等级评价的区别,根据说明书附图15可知,两次测量结果存在一定的波动。 [0064] By comparison shows that the present invention is intended to establish a standard bearing cover based on the vibration measuring instrument, capable of providing higher speed condition, the condition at different speeds bearing vibration data measured after each test bearing sleeve 29 S0910-II type acceleration meter detects bearing vibration and high speed rolling vibration measuring instrument, the comparative analysis of the difference between two vibration detection and evaluation grade, 15 found in accordance with the accompanying drawings, the two measurements there are some fluctuations. 按照现行标准对被测轴承进行振动等级的评价时发现11#、13#、16#、18#、22#和27#轴承两次检测结果存在差异,但仍分布在两个相邻的等级范围,因此,认为滚动轴承高速振动测量仪在标准规定速度条件下对轴承进行振动检测的结果与标准轴承振动测量仪检测结果是相吻合的。 # 11 was found during evaluation of the measured vibration level of the bearing according to the current standard, # 13, # 16, # 18, # 22 and # 27 bearing the two detection results are different, but still located in two adjacent levels range , therefore, that the high-speed rolling bearing vibration measuring instrument of the results with the standard bearing vibration measuring instrument of the detection result of the vibration detection coincide at a standard speed condition.

[0065]本发明中主要技术参数要求及其标定过程如下: [0065] In the present invention, the main technical parameters and the calibration process is as follows:

[0066] -、在搭建试验用滚动轴承高速振动测量仪时,针对改进项采取如下措施1转速既能满足低速要求又能满足高速要求,选择了高性能的高速电主轴直接驱动试验轴承,选用DGZ-60E型电主轴;2使用高性能的加速度传感器AD500T-D,频率范围1-20000HZ,对采样的数据使用便携式的DH5909动态分析仪进行实时的振动检测和数据存储3加速度传感器预紧力:能保证每次试验过程中传感器与轴承的紧密贴合,又不影响轴承振动;能够保证多组试验过程中,消除加速度传感器带来的误差; [0066] - When a high-speed rolling bearing test structures vibration measuring instrument, the following measures for improving the speed meets the item 1 can meet the requirements of low-speed requirements, selected high-performance high-speed direct-drive spindle bearing test, selection DGZ -60E type spindle; 2 high-performance acceleration sensor AD500T-D, the frequency range 1-20000HZ, the use of portable data sampled DH5909 dynamic analyzer for real-time detection of vibration an acceleration sensor 3 and the data storage preload: energy during each test to ensure close contact with the bearing sensor, without affecting the bearing vibration; a plurality of sets can be guaranteed during the test, to eliminate errors caused by an acceleration sensor;

[0067]在搭建过程中对主要的试验参数进行标定和设置:1主轴转速的标定2轴向加载: 加载装置的标定,力大小的确定,加载装置与主轴轴心同轴度的标定;3数据处理过程中滤波器的设计:要满足国家标准中给出的滤波器的要求,保留相应频率段的数据信息;4数据处理得滤波器进行标定5润滑条件,根据轴承实际过程中的润滑条件设置。 [0067] structures in the main process parameters of the test and calibration settings: spindle speed of 1 second axial loading calibration: calibration determining means, the magnitude of loading force, the indexing means is coaxial with the spindle axis of loading; 3 data processing filter design: to meet the requirements of the national standard filter given, to retain data corresponding to frequency bands; 4 filter calibration data handled 5 lubrication conditions, the process according to the actual bearing lubrication conditions settings.

[0068] 二、转速的标定 [0068] Second, the rotational speed calibration

[0069]采用深DT2234C型光电式转速表激光对转速进行标定。 [0069] The deep DT2234C photoelectric tachometer speed laser calibration. 具体指标见表1-1。 Specific indicators in Table 1-1.

[0070] [0070]

Figure CN105424367AD00091

[0071]图18为电主轴的转速标定曲线,由图中可以看出无论是空载还是加载,速度曲线都与理论曲线基本吻合。 [0071] FIG. 18 is a calibration curve of spindle speed, it can be seen from the figure, whether loaded or unloaded, the speed curve is in good agreement with the theoretical curve. 分析空载和加载的速度曲线可知,加载后丢转相对空载来说要大一些,其中空载在低速丢转率4. 47%,高速丢转率0. 0667% ;加载后低速丢转达10%,高速丢转率0. 27%。 Analysis load and loading speed profile can be seen, the load is lost to turn relatively larger load, wherein the load in the low revolution rate lost 4.47%, the high-speed transfer rate of 0.0667% lost; low-loaded lost convey 10%, high-speed transfer rate lost 0.27%. 低速条件下丢转率大说明高速电主轴的低速性能不好。 DESCRIPTION lost at low speed rotation of large good low speed performance of high-speed spindle.

[0072] 出现这样在低速情况下"丢转"的现象,可以通过调节变频器使得在低速情况下主轴转速能够达到要求, [0072] occurs at low speeds such "lost turn" phenomenon, so that by adjusting the drive speed of the spindle at low speed to meet the requirements,

[0073] 三、加载力标定 [0073] Third, the loading force calibration

[0074] 加载力大小的标定是通过定量移动固定在滑台上的推拉力仪,读取对应刻度下推拉力仪的测值,完成加载力的标定曲线。 [0074] The magnitude of the biasing force is calibrated by quantitative moving push pull gauge fixed in the sliding table, read the corresponding scale value of the push-down force measurement instrument, the calibration curve to complete loading force. 推拉力仪采用HP-500型推拉力仪,其主要技术参数如表1-2所示。 Push pull type HP-500 instrument with push pull gauge, its main technical parameters shown in Table 1-2.

[0075] 表1-2推拉力仪主要技术参数 [0075] Table 1-2 push pull main technical parameters

[0076] [0076]

Figure CN105424367AD00092

[0077] 绘制标定曲线如图19所示。 [0077] The calibration curve is plotted as shown in Fig. 由标定曲线可知加载力随加载刻度的变化呈直线上升,符合弹簧加载原理。 Seen from the calibration curve with the biasing force of the loading scale changes linearly increased in line with the principle of a spring-loaded. 由加载力-加载刻度曲线可以计算出弹簧的弹性系数大约为1. 376〇 By the biasing force of - loading a spring scale curve can be calculated modulus of elasticity of about 1. 376〇

[0078] 四、加载力方向:为了达到轴承中限定的运动学条件,测振过程中应对轴承外圈加载,施加的载荷应足够大,以防止滚动体打滑又不致引起变形而影响测量结果。 [0078] Fourth, the biasing force direction: In order to achieve the kinematic conditions defined in the bearing, vibration cope with the outer bearing ring during loading, the load applied should be large enough to prevent slippage and rolling element without causing deformation affect the measurement results. 加载装置除能对轴承外圈施加合成载荷、限制外圈旋转外,还应使外圈振动不受加载装置干扰而仅轴承的运转引起,对角接触球轴承施加了合成中心轴向载荷。 Loading means capable of applying the operation in addition to the synthetic load bearing outer ring, the outer ring to limit the rotation, the outer ring vibration should not interfere with loading means causes only the bearing, angular contact ball bearings applied to the synthesis of the central axial loads.

[0079] 五、加载力确定:测振过程中,为了限定轴承的运动学条件,应对轴承施加一定的载荷。 [0079] Fifth, the biasing force is determined: Vibration process, in order to define the kinematic conditions of the bearing, to deal with a certain load applied to the bearing. 所施加的载荷应适当,防止滚动体相对内、外套圈滚道打滑但又不致引起变形而影响测量结果。 The applied load should be appropriate to prevent the rolling elements relative to, the outer ring raceway slip but does not cause deformation affect the measurement results. 对于7003C轴承,国标规定的轴向载荷的设定值在90-110N之间。 For 7003C bearing, GB predetermined set value of the axial load between 90-110N. 计算轴承在1500rpm和100N条件下的打滑率为0。 Slip rate calculating bearing at 1500rpm and conditions 0 100N. 转速设为60000rpm、径向力为8N,计算轴承的打滑率随轴向力的变化曲线如图9所示。 Set speed 60000rpm, the radial force of 8N, the slip ratio is calculated with an axial bearing force curve as shown in FIG. 根据图9可以看出轴承的打滑率虽然有些许变化,但是几乎都为0。 As can be seen in FIG. 9 in accordance with the slip rate of change of bearing, although slightly, but almost zero. 可见轴向加载力的范围只要保证能够限定轴承外圈的运动即可。 Axial biasing force visible range as long as the movement can be defined to the outer bearing ring. 初步设定为50-100N。 Initially set to 50-100N.

[0080] 六、传感器预紧力的确定和施加 [0080] determining and applying six, sensor preload

[0081] 1传感器预紧力大小的确定 Determining the [0081] magnitude of the biasing force sensor 1

[0082] 传感器预紧力达到一定程度后,测得轴承振动均方根值将处于一定的稳定状态。 After [0082] preload sensor reaches a certain level, the rms value of the measured vibration of the bearing is constant and stable state. 取两套经过润滑后的7003C轴承,测量其在不同予紧力,同时传感器组件内部自身会有一定的预紧力4. 2N,在这种情况下的振动信号,得到轴承振动加速度大小随予紧力大小的变化曲线,如图20所示。 After taking two 7003C lubricated bearings, to measure the different tightening forces, while the internal components of the sensor itself will have a certain preload 4. 2N, vibration signal in this case, the size of the bearing vibration acceleration obtained with I clamping force magnitude curve, as shown in Fig. 分析轴承振动随预紧力的变化趋势,并结合轴承振动出厂时的测量值,实验时预紧力取8N左右。 Bearing Vibration Analysis of the trend with the biasing force, combined with the measured values ​​when bearing vibration factory experiment preload take about 8N.

[0083] 2传感器预紧力位置调整装置 [0083] The biasing force of the second sensor position adjusting device

[0084] 整个检测实验台的设计是以传感器的接触端为中心定位,因此传感器的位置调整装置仅仅改变传感器的上下移动。 [0084] Experimental design of the whole station is detected the contact end of the sensor is centrally located, thus adjusting the position of the sensor means changing only the vertical movement sensor. 采用两根光轴作为调整装置的导轨;利用较大刚度丝杠实现定位梁的上下移动;带有刻度的首轮能够清楚的指示上下移动的位移;丝杠锁定装置可以在调整好位置后将丝杠锁定,防止横梁的上下窜动。 Using the two axis as a guide for adjusting means; the screw with a larger rigidity to achieve the vertical movement of the locating beam; round scale with a clear indication can be moved up and down displacement; spindle locking means can be adjusted in position after good screw lock to prevent the upper and lower traverse beams. 具体的方案见图1-18所示。 Specific embodiment shown in Figure 1-18.

[0085] 3滤波器设计设计 [0085] Filter Design 3

[0086] 根据说明书附图21和图22可知,滤波器的设计要满足标准中给出的范围,本发明中使用的butterworth带通滤波器对数据进行处理。 [0086] The 21 and 22 can be seen the accompanying drawings, the filter is designed to meet the criteria given range, Butterworth band-pass filter used in the present invention, the data is processed. 最后调试的滤波器特性曲线。 Final commissioning of the filter characteristic.

[0087] 七、润滑设置 [0087] Seven, lubrication set

[0088] 目前针对的是密封型脂润滑轴承,因此在进行时试验前必须对轴承进行相应的跑合; [0088] It is against the sealed grease lubricated bearings, the bearings must be appropriate before the test during run-in;

[0089] 实际的试验设置举例说明:针对目前使用在某磨削电主轴用脂润滑轴承,该轴承型号为FAGHCS7003-CT-P4S-UL,试验用脂为FAGL252。 [0089] Actual test setup illustrated: for the current in a grinding spindle with grease lubricated bearings, the bearing model FAGHCS7003-CT-P4S-UL, test fat is FAGL252. 该轴承在安装时因在主轴位置的不同受到的预紧力分别为120N-140N和60N-70N,转速使用范围为:10000r/min-60000r/ min。 The bearings in the mounting position due to the biasing force of the spindle are subject to different 120N-140N and 60N-70N, the speed range of: 10000r / min-60000r / min. 因此在对该进行高速振动测量时的工况设计应该为:对于新的密封型脂润滑轴承,在进行振动测量时一定要经过跑合,跑合,跑合程序的确定是按照轴承厂家推荐的跑合程序。 Therefore, the design condition of the high speed vibration measurements should be: For a new type of sealed grease lubricated bearings, vibrations must pass during the running-in time of measurement, running-in, the running program is determined in accordance with the manufacturer's recommended bearing running-in program.

[0090] 试验过程中转速设置和加载力设置: [0090] During the test speed and load force setting is provided:

[0091] 根据轴承使用条件,目前通常使用的转速范围为30000r/min,因此变频器的频率设置为500Hz。 [0091] The bearing conditions, the current speed range is generally used 30000r / min, so that the frequency of the inverter is set 500Hz.

[0092] 轴向加载力,轴承在根据在电主轴中的位置不同受到的预紧力也不同,而在工作过程中,刀具端受到的切削力很小,通过对轴心轴向受力平衡计算,对轴承受到的轴向力没有多大变化,因此在设置的时候按照轴承的预紧力的大小进行设置。 [0092] The axial biasing force, in the bearing according to the position of the electrical spindle is subjected to different biasing forces are also different, and during operation, by the end of the tool the cutting force is small, the axial force through axial balance calculation , not much change in the axial force bearing on the subject, and thus set according to the size of preload when the bearing set. 轴承的转速一般可以达到,而轴承所受到的载荷范围有限,不能达到所有的轴向载荷,就本试验台而言,原则上是应该可以按照实际的载荷条件设置,但是受结构设计和电主轴受力限制,只能在一定范围内调节所使用的轴向力,因此在本试验台的基础上,一般设定一个轴向力来进行试验,只满足转速的要求。 Generally up speed of the bearing, the load range is limited by the bearings, not reach all of the axial load on the test bed, the principle should be set according to the actual load conditions, but by the structural design and spindle force limit, adjustment of the axial force only used within a certain range, and therefore on the basis of the test bed, an axial force is generally set to be tested, only meet the requirements of speed. 在试验轴承和主轴之间还可再添加一个支撑轴承抵消轴向加载时对主轴的影响。 Between the spindle and the test bearings add a further impact on the main shaft support bearing offset axially loaded. 因此目前轴向加载力一般都设为60N。 So now generally axial loading force to 60N.

[0093] 进行试验:在设置好的转速和轴向力下,进行试验,当振动达到稳定状态稳定状态:在平均值附近只有偶然的随机波动时,测试不少于〇. 5s的振动数据。 [0093] tested: at pre-set speed and the axial force under test, when the vibration reaches a steady state steady state: only in the vicinity of an average value when occasional random fluctuations, vibration test data of least square 5s. 然后进行数据处理。 And data processing.

具体实施方式[0094] 二:本实施方式为一的进一步限定,本实施方式中步骤三中传感器组件3-5的检测头贴紧在试验轴承4的外圈端面的中心处。 DETAILED DESCRIPTION [0094] II: is an embodiment of the present embodiment is further defined, in the present embodiment, the sensor assembly step 3 of the detection head adhesion 3-5 at the center of the test bearing outer end surface 4.

[0095] 具体实施方式三:本实施方式为具体实施方式一或二的进一步限定,本实施方式中步骤五中对采集的振动数据通过butterworth带通滤波器进行带通滤波,采用轴承动态信号分析仪采集和监测轴承振动,评定试验轴承4在高速下的振动状态,当带通在50-10000HZ范围内时,求得运行平稳阶段,不少于0.5s的振动加速度数据的均方根值即可。 [0095] DETAILED Embodiment 3: Embodiment of the present embodiment is further defined as a specific embodiment one or two, the fifth step of the present embodiment, the vibration data collection is performed by bandpass filtering butterworth bandpass filter, signal analysis using dynamic bearing the instrument collects and bearing vibration monitoring, assessment of the vibrational state of the test bearing 4 at high speeds, when the bandpass in the range 50-10000HZ, to obtain smooth operation stage, vibration acceleration less than the rms data 0.5s i.e. can.

Claims (3)

  1. 1. 一种滚动轴承高速振动测试方法,其特征在于:所述方法包括以下步骤: 步骤一:搭建滚动轴承高速振动测量仪:建立滚动轴承高速振动测量仪,根据滚动轴承标准轴承测量仪的搭建精度要求对滚动轴承高速振动测量仪进行搭建,在此基础上并扩充滚动主轴标准振动测量仪的转速范围,使用高性能加速度传感器检测轴承高速工况下振动; 步骤二:检测滚动轴承高速振动测量仪:检测滚动轴承高速振动测量仪的使用性能, 当其同时满足滚动轴承标准振动测量仪标准及高速的要求时,等待进行高速工况下滚动轴承振动检测工作;当其未达到标准振动测试仪及高速的要求时,重复步骤一直至同时满足标准振动测试仪标准及高速的要求,同时对滚动轴承高速振动测量仪中的驱动主轴(5)的转速η进行测定,测定滚动轴承高速振动测量仪中加载弹簧(2-1) A high speed rolling bearing vibration testing method characterized in that: said method comprises the following steps: Step one: building high speed rolling vibration measuring instrument: establishing high-speed rolling vibration measuring instrument, according to standard rolling bearings build precision requirements for rolling bearings meter vibration measuring instrument built for high speed, on the basis of the rolling speed range of the spindle and the expansion vibration measuring instrument of a standard, high-speed high-performance acceleration sensor for detecting a vibration condition bearing; two steps: detecting a high speed rolling vibration measuring instrument: High speed rolling vibration detecting meter performance, when it is satisfied the standard rolling vibration measuring instrument standards and requirements of high speed, high speed condition to wait for rolling vibration detecting operation; when it does not reach the standard of vibration tester and high speed requirements, repeating steps a At the same time meet the criteria until the vibration tester and high-speed requirements of the standard, while the drive spindle (5) high-speed rolling bearing vibration measuring instrument for measuring the rotational speed of η, measured in a measuring instrument vibrates at high speed rolling bearing spring loading (2-1) 未压缩时的长度; 步骤三:调试变频器以及加载力F的施加过程:首先由于滚动轴承高速振动测量仪中的驱动主轴(5)的转速η已确定,根据公式f = η/60计算出变频器设定频率f,根据计算出的变频器设定频率f对变频器进行参数无级调速,其次设定滚动轴承高速振动测量仪中轴向加载装置(2)中加载力F的数值,根据弹簧载荷与压缩距离之间的曲线图对照出加载力F对应的加载弹簧(2-1)需要压缩的长度,通过操作轴向加载装置(2)中的加载手柄(2-6) 对加载弹簧(2-1)逐渐进行压缩直至试验轴承(4)承受的加载力达到F值为止;再次将传感器组件(3-5)中的检测头贴紧在试验轴承(4)的外圈上,同时将传感器组件(3-5)的信号输出端连接在DH5909动态信号分析仪上,实时监测试验轴承(4)的振动状态和存储振动数据;然后启动滚动轴承高速振动测量仪,试验轴承( Uncompressed length; three steps: adjustment of the inverter and the biasing force F is applied to the process: First, as the drive spindle (5) high-speed rolling bearing vibration measuring instrument has determined that the rotation speed [eta], is calculated according to the formula f = η / 60 variable frequency setting the frequency f, the frequency f is set to the variable speed drive parameters based on the calculated drive, followed by high-speed rolling bearing vibration measuring instrument set in the axial loading device (2) to load the value of the force F, in accordance with compressed graph showing the spring load and the distance between the load control spring biasing force F corresponding to the (2-1) needs to be compressed length, loading means for loading the spring charging handle (2-6) (2) in the axial direction by operating (2-1) is gradually compressed until the test bearing (4) is subjected to the biasing force F reaches the value; sensor assembly (3-5) in the test head in close contact again the test bearing (4) of the outer ring, while the sensor signal output assembly (3-5) connected to the dynamic signal analyzer DH5909, vibration state monitoring and storing data in real time vibration test bearing (4); then start the high-speed rolling vibration measuring instrument, test bearing ( 4)在滚动轴承高速振动测量仪中进行转动,最后当试验轴承(4)运行达到平稳状态时,开始对试验轴承(4)进行多组数据的采集,通过传感器组件(3-5)的检测头将采集平稳的振动数据传递到动态信号分析仪中; 步骤四:带通滤波器的调试:将butterworth带通滤波器进行调试,使其在符合GB/ T246KX 1-2009/IS015242-1 :2004的标准下,butterworth带通滤波器的带通频率在50-10000HZ 之间; 步骤五:振动评价过程:使用调试后的滤波器对动态信号分析仪中的数据进行处理, 然后求振动幅值的均方根值和峰值,依据公式 4) rotates at high speed rolling bearing vibration measuring instrument, and finally when the test bearing (4) to reach steady state operation, the start of the test bearing (4) sets of data collected by the sensor unit (3-5) of the test head the collected data is transmitted to the vibration smooth dynamic signal analyzer; step four: bandpass filter debug: debug butterworth bandpass filter, so that in line with GB / T246KX 1-2009 / IS015242-1: 2004 in standard, Butterworth bandpass frequency of the bandpass filter between 50-10000HZ; step five: vibration evaluation process: the used filter debugging dynamic signal analyzer data is processed, and the vibration amplitude are required and the square root of the peak, according to the formula
    Figure CN105424367AC00021
    求得振动加速度等级,式中L为振动加速度级,a为某一频率范围内的振动加速度均方根值或轴承振动加速度峰值,a。 The vibration acceleration level calculated, where L is the vibration acceleration level, vibration acceleration peak acceleration A root mean square value or bearing vibrations within a frequency range, a. 为参考加速度,其值为9. 81X10 3m/s2,最后根据JB/T 7047-2006中加速度振动等级划分轴承标准对试验轴承(4)的振动情况进行评价。 Is a reference acceleration, a value of 9. 81X10 3m / s2, and finally evaluated the test bearings (4) of the vibration according to JB / T vibration acceleration bearing grading standards 7047-2006.
  2. 2. 根据权利要求1所述的一种滚动轴承高速振动测试方法,其特征在于:步骤三中传感器组件(3-5)的检测头贴紧在试验轴承(4)的外圈端面的中心处。 A rolling bearing according to a high speed vibration testing method according to claim 1, wherein: the sensor assembly step 3 (3-5) in close contact with the test head at the center of the test bearings (4) of the outer end face.
  3. 3. 根据权利要求1或2所述的一种滚动轴承高速振动测试方法,其特征在于:步骤五中对采集的振动数据通过butterworth带通滤波器进行带通滤波,采用轴承动态信号分析仪采集和监测轴承振动,评定试验轴承(4)在高速下的振动状态,当带通在50-10000HZ范围内时,求得运行平稳阶段,不少于〇. 5s的振动加速度数据的均方根值即可。 A rolling bearing according to a high speed vibration testing method according to claim 1, wherein: step 5 for vibration data collection is performed by bandpass filtering butterworth bandpass filter, using a dynamic bearing acquisition and signal analyzer bearing vibration monitoring, assessment test bearing (4) at high speed vibration state, when the bandpass in the range 50-10000HZ, to obtain smooth operation phase, of not less than square. rms values ​​of the vibration acceleration data, i.e. 5s can.
CN 201511019638 2015-12-29 2015-12-29 Rolling bearing high-speed vibration testing method CN105424367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201511019638 CN105424367A (en) 2015-12-29 2015-12-29 Rolling bearing high-speed vibration testing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201511019638 CN105424367A (en) 2015-12-29 2015-12-29 Rolling bearing high-speed vibration testing method

Publications (1)

Publication Number Publication Date
CN105424367A true true CN105424367A (en) 2016-03-23

Family

ID=55502721

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201511019638 CN105424367A (en) 2015-12-29 2015-12-29 Rolling bearing high-speed vibration testing method

Country Status (1)

Country Link
CN (1) CN105424367A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378373B1 (en) * 2000-11-09 2002-04-30 New Hampshire Ball Bearings, Inc. High-speed bearing vibrational analysis system
CN101975659A (en) * 2010-08-27 2011-02-16 洛阳轴研科技股份有限公司 High-speed dynamic simulation test method for electric mainshaft bearing
CN104359674A (en) * 2014-10-20 2015-02-18 广东电网有限责任公司电力科学研究院 High-speed rolling bearing fault diagnosing method based on time domain and frequency domain state monitoring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378373B1 (en) * 2000-11-09 2002-04-30 New Hampshire Ball Bearings, Inc. High-speed bearing vibrational analysis system
CN101975659A (en) * 2010-08-27 2011-02-16 洛阳轴研科技股份有限公司 High-speed dynamic simulation test method for electric mainshaft bearing
CN104359674A (en) * 2014-10-20 2015-02-18 广东电网有限责任公司电力科学研究院 High-speed rolling bearing fault diagnosing method based on time domain and frequency domain state monitoring

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
王冰 等: "轴承异常声检测错判和漏判原因分析与对策", 《轴承》 *
郑德志 等: "航空发动机用高速滚动轴承性能考核及失效分析", 《润滑与密封》 *
黄啸: "轴承振动自动检测仪的研制", 《中国优秀硕士学位全文数据库 工程科技‖辑》 *

Similar Documents

Publication Publication Date Title
US5663894A (en) System and method for machining process characterization using mechanical signature analysis
CN101187553A (en) Large-scale precision bearing axial clearance multifunctional automatic measuring instrument
CN201004011Y (en) A shaft friction torque measurement instrument
CN201673044U (en) Aligning device and engine test bed comprising same
CN1042416A (en) Measuring method and its apparatus for roundness of large axle and beat in clinical examination
CN201622036U (en) Inspection tool for detecting comprehensive true position of shell
CN102012286A (en) Method and system for testing reliability of electric spindle in machining center
CN201043887Y (en) Device for detecting straightness and roundness of rod bar
CN201331402Y (en) Thrust bearing dynamic tester
CN201187982Y (en) Biserial contact ball bearing and axial play detector for biserial conical bearing
CN103543010A (en) High-speed screw and screw pair comprehensive examination test bed
CN102183364A (en) Platform for testing performance of main shaft of machine tool
CN201780090U (en) Taper angle check tool
CN201434660Y (en) Detection device for detecting perpendicularity of axis and runout of end surface of hole
CN201997997U (en) Hole depth measuring device
Plapper et al. Sensorless machine tool condition monitoring based on open NCs
CN203037461U (en) Bearing dynamic characteristic parameter testing apparatus
CN202735085U (en) Spindle performance testing platform
CN104019728A (en) Integration testing fixture for parallelism and center distance of large hole and small hole of a connecting rod
CN102944417A (en) Platform and method for testing static rigidity of machine tool spindle
CN201285271Y (en) Measuring tool for end face shallow bore
CN102975119A (en) Monitoring and diagnosing system of operation and process state of numerically controlled cylindrical grinding machine
CN1979085A (en) Shift-hit-meter method for measuring axiality eoor of thread axiality male gauge
CN202339182U (en) Device for measuring internal taper
CN201514229U (en) Vortex flow sensor check table

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data