润滑科技信息平台

专利摘要

一种基于整车评估润滑脂极压抗磨性能的方法,包括将润滑脂注入到关键轴承销上,使工程机械空载运行; 使工程机械在10%至150%额定负载下至少运行一次; 查看和分析轴承销表面的磨损情况; 出具全车润滑脂极压抗磨性能评价报告。使工程机械在10%~150%额定负载下运行一次0.5min~100h。 ......

基本信息

专利类型:
发明专利
申请/专利号:
EP2020791410
申请日期:
2020-04-17
专利申请人:
分类号:
["G01N3/56","G01H3/14","G01M13/04","G01N33/30"]
发明/设计人:
LIN, BO ， ZHANG, LI ， WAN, XIAONA ， SHAO, JIE ， XIN, HUILIANG ， LIANG, HAO ， LUO, JINQIONG ， TAN, MINGFENG ， LIN, MINGZHI ， HOU, GUOQING
权利要求: 1. A whole-engineering-machine-based method for evaluating extreme pressure and antiwear properties of grease, comprising: injecting (S200) the grease onto a key bearing pin of an engineering machine and causing the engineering machine to operate without load; causing (S210) the engineering machine to operate under a load of 10% to 150% rated load at least once; recording (S220) whether an abnormal noise occurs during the effective operation of the key bearing pin under different loads, and determining a calculated noise peak generated under a corresponding load; viewing and analyzing a wear condition of a surface of the key bearing pin, and a noise peak condition of the key bearing pin; and issuing (S230) a whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease according to the wear condition and the noise peak condition, wherein the engineering machine is caused to operate once under the load of 10% to 150% rated load for 0.5 min to 100 h, and the calculated noise peak generated under the corresponding load is determined according to a following formula: Max dB 1 + dB 2 + dB 3 + dB 4 + dB 5 5 , dB x + dB x − 1 + dB x − 2 + dB x − 3 + dB x − 4 5 , wherein dB 1 + dB 2 + dB 3 + dB 4 + dB 5 5 denotes an average value of noise peaks of the key bearing pin during first five times of lowering in N times of lifting of a working device of the engineering machine, and dB x + dB x − 1 + dB x − 2 + dB x − 3 + dB x − 4 5 denotes an average value of noise peaks of the key bearing pin during last five times of lowering in the N times of lifting of the working device of the engineering machine.2. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 1, wherein a range of the rated load of the engineering machine is 0.1 to 80 tons.3. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 1, wherein the engineering machine is caused to operate once under the load of 10% to 150% rated load for 0.5 min to 30 min.4. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 2, wherein effective operating time of the key bearing pin is [15, 30) min in a case where a range of the rated load of the engineering machine is [0.1, 2) tons.5. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 2, wherein effective operating time of the key bearing pin is [5, 15) min in a case where a range of the rated load of the engineering machine is [2, 9) tons.6. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 2, wherein effective operating time of the key bearing pin is [0.5, 5) min, in a case where a range of the rated load of the engineering machine is [9, 80) tons.7. A whole-engineering-machine-based method for evaluating extreme pressure and antiwear properties of grease, comprising: selecting (S300) an engineering machine and a key bearing pin of the engineering machine; injecting (S310) the grease onto the key bearing pin and commissioning the key bearing pin; causing (S320) the engineering machine to operate effectively under no load and under a load of 10n% to (10n ± 2)% rated load separately; recording (S330) whether abnormal noise occurs during effective operation of the engineering machine under different loads, and recording a calculated noise peak of the engineering machine during the effective operation under the different loads; viewing and analyzing a wear condition and a noise peak condition of the key bearing pin; and issuing (S340) an evaluation report of the extreme pressure and antiwear properties of the grease according to the wear condition and the noise peak condition, wherein n denotes an integer of 1 to 15, and the engineering machine is caused to operate once under a load of 10n% to (10n ± 2)% the rated load for 0.5 min to 100 h, and wherein the calculated noise peak generated under a corresponding load is determined according to a following formula: Max dB 1 + dB 2 + dB 3 + dB 4 + dB 5 5 , dB x + dB x − 1 + dB x − 2 + dB x − 3 + dB x − 4 5 , wherein dB 1 + dB 2 + dB 3 + dB 4 + dB 5 5 denotes an average value of noise peaks of the key bearing pin during first five times of lowering in N times of lifting of a working device of the engineering machine, and dB x + dB x − 1 + dB x − 2 + dB x − 3 + dB x − 4 5 denotes an average value of noise peaks of the key bearing pin during last five times of lowering in the N times of lifting of the working device of the engineering machine.8. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 7, wherein after causing (S30) the engineering machine to operate effectively under the load of 10n% to (10n ± 2)% rated load, wherein a value of n is less than 15, the method comprises: observing and determining whether a surface of the key bearing pin is worn; in a case where the surface of the key bearing pin is not worn, increasing the value of n and causing the engineering machine to operate effectively under different loads; and in a case where the surface of the key bearing pin is worn, stopping a test of to-be-tested grease after the engineering machine completes operating effectively under the load of 10n% to (10n ± 2)% rated load; and issuing a whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease according to a determination result of whether the surface of the key bearing pin is worn under the different loads.9. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 1, in response to the abnormal noise occurring during the effective operation of the key bearing pin, a test of to-be-tested grease is stopped after the effective operation of the key bearing pin under the corresponding load is completed.10. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 9, wherein issuing the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease comprises: issuing the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease according to the abnormal noise of the key bearing pin during effective operation under the different loads, the calculated noise peak, and a determination result of whether the surface of the key bearing pin is worn.11. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 1, further comprising recording a sound power level of the engineering machine during the effective operation under different loads.12. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 7, further comprising: recording a sound power level of the engineering machine during the effective operation under different loads.13. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 7 wherein in response to an abnormal noise of the engineering machine occurring during an effective operation of the key bearing pin, after the effective operation of the key bearing pin under a corresponding load is completed, a test of to-be-tested grease is stopped, and the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease is issued.14. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claims 11 or 12, wherein in response to an abnormal noise occurring during an effective operation of the engineering machine, after an effective operation of the key bearing pin under the corresponding load is completed, a test of to-be-tested grease is stopped, and the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease is issued.15. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 14, wherein issuing a whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease comprises 27 issuing the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease according to an abnormal noise of the engineering machine during an effective operation under the different loads and according to a determination result of the sound power level.16. The whole-engineering-machine-based method for evaluating the extreme pressure and antiwear properties of the grease of claim 13, wherein the issuing the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease comprises issuing the whole-engineering-machine-based evaluation report of the extreme pressure and antiwear properties of the grease according to the abnormal noise of the engineering machine during the effective operation under the different loads and according to a determination result of the calculated noise peak.