Shandong Xinkaite Bearing Co.,Ltd.
Unified Social Credit Code: 9137 1525MA3C 5428XP
Production Department
Address: Xu Village Industrial Garden, Gan Town, Guan County, Shandong
Tel: +86 635 5638235
Fax: +86 635 5638808
Mobile: +86 15563545668
Service Hotline: 4000 305204 Sales Department
Address: 314 Puli Mansion, Beixiaoxinzhuang West Street, Jinan City, Shandong
Tel: +86 15688862750
Fax: +86 531 87901699
WhatsApp: +86 15688862750
Skype: live:XinKaite
Email: xkte@xinkaite.com
Measures to be taken to solve the noise of idler roller
Clicks:3366 Date:12-11
Our vibration grading standard has JB/T7047---93 "deep groove ball idler roller vibration (acceleration) technical conditions" and JP/T5009--94 "deep groove ball idler roller vibration (speed) technical conditions". These two standards have been revised many times, and have played a good role in the work of reducing vibration of the industry idler roller. But now, users are not just asking for an increase in the Z4 group, the VI group. More importantly, users put forward to avoid abnormal sound or noise idler roller asked how reflected from the standard, abnormal sound and murmur is not a rule, or a sudden unpleasant to the ear acoustic stimulation up. The reason is nothing more than the rolling surface of wound, the lubricant retainer and a foreign body, the rolling friction caused by irregular, the received signal is the peak pulse. However, the two vibration condition of idler roller standard at present our implementation, although the Z1, Z2, Z3, V2, V3 group and V1 group, speed even divided into three bands, but the values are the values are valid (basically close to the arithmetic mean), pulse peak abnormal vibration sound and murmurs are not reflected.
Rolling road sound is due to the idler idler roller roller rotary rolling body raceway and rolling in the excited noise smooth and continuous, only when the sound pressure level or great attention to tone. In fact, the sound energy of the raceway is limited, for example, under normal conditions, the sound of the high quality 6203 deep groove ball idler roller raceway is 5 to 27dB. This kind of noise is the most typical of the single row deep groove ball idler roller, which bears the radial load, and it has the following characteristics.
First, the vibration frequency is above 1kHz.
Two idler roller, the rigid seat increases, the lower the total sound pressure, which makes the type of speed increase and the total sound pressure level is slightly increased.
Three, the higher the viscosity of the lubricants, but for the grease lubrication, the lower the sound pressure level, the viscosity. The shape and size of the soap fiber can affect the noise value.
Four, no matter how to change speed, noise frequency and sound pressure level is almost the same with the speed increasing.
Five, although idler roller raceway noise is unavoidable, it is possible to process parts working surface with high accuracy, correctly select and use precisely, so as to reduce noise and vibration.
Six. The noise and vibration are random.
The source of the sound production of the idler roller raceway is caused by the inherent vibration of the ring after the load. When the accuracy of lubrication or processing is not high, it will be related to this elastic feature.
