- Detail

Explanation of common terms of dynamic balancing machine

1 Unbalance

the magnitude of the unbalance on a plane of the rotor does not involve the angular position of the unbalance. It is equal to the product of the unbalanced mass and its center of mass to the rotor axis. The unit of unbalance is GMM or GCM, commonly known as "heavy diameter product"

2. Unbalance phase

the angle value of the unbalance mass on a plane of the rotor relative to the given polar coordinates

3. Unbalance degree

unbalance of unit mass of rotor, in gmm/kg. In case of static unbalance, it is equivalent to the mass eccentricity of the rotor, and the unit is μ m。

4. Initial unbalance

unbalance on the rotor before balancing

5. Allowable unbalance

the allowable residual unbalance of the rotor to ensure the normal operation of rotating machinery. When this index is expressed by unbalance degree, it is called allowable unbalance degree (also known as allowable unbalance rate)

6. Residual unbalance

residual unbalance on the rotor after balance correction

7. Correction radius

the distance from the centroid of the correction mass on the correction plane to the rotor axis is generally expressed in mm

8. The interference (mutual influence) of the correction plane

the change of the unbalance on one correction surface of a given rotor causes the change of the indicated value of the balancer on another correction plane (sometimes referred to as the plane separation effect)

9 Rotor balance quality

an index to measure the degree of rotor balance

G=eper ω/1000

where G - Balance quality of rotor, unit: mm/s. Score 11 grades from g0.4-g4000

eper - allowable unbalance rate of rotor gmm/kg or rotor mass eccentricity μ m

ω－ The angular speed corresponding to the maximum working speed of the rotor = 2 π n/60 ≈ n/10, n is the working speed of the rotor r/min

10 Allowable unbalance degree (rate) per unit mass of rotor

eper = g × 1000/n/10 unit: gmm/kg or μ m

11. Minimum achievable residual unbalance (Umar)

minimum achievable residual unevenness hydraulic testing machine measurement (Umar). The unit is GMM. Its meaning refers to the minimum value of residual unbalance that the balancing function makes the rotor reach. It is the performance index to measure the highest balancing capacity of the balancing machine. When this index is expressed by unbalance degree, it is called the minimum achievable residual unbalance degree. (unit: gmm/kg)

12 leave holes for anchoring anchor screws and pipes for installing circuits and sensors when pouring concrete Unbalance reduction rate (URR)

the ratio of the unbalance reduced by a balance correction to the unbalance of the initial flame retardant of 2.0~3.0. It is a performance index to measure the efficiency of the balancing machine, expressed in percentage:

URR (%) = (u1-u2)/u1 = (1-u2/u1) × 100

where: U1 - initial unbalance

u2 - residual unbalance after one-time balance correction

13 Unbalanced couple interference ratio

performance index of single-sided balancing machine to suppress the influence of unbalanced couple

unbalance per unit mass of rotor, in gmm/kg. In case of static unbalance, it is equivalent to the mass eccentricity of the rotor, and the unit is μ m。

14. Calibration rotor

a rigid rotor designed to verify the performance of the balancer. Its quality, size and size are specified, including discrete type and horizontal type. The mass of vertical rotor is 1.1, 3.5, 11, 35, 110 kg. The mass of horizontal rotor is 0.5, 1.6, 5, 16, 50, 160, 50g After the test, 0kg (end) can be automatically archived and manually archived

Related Topics

- ·Open Navy - Today News Post
- ·Trio hit with big fine for undersize crab catch -
- ·Killer Luka Magnotta seeks transfer from maximum-s
- ·Hampden Park and EICC to become mass vaccination c
- ·Turkish court extends activists detention despite
- ·3 Nazi salutes in one month show need to combat an
- ·High anxiety for immunocompromised individuals as
- ·British strain of Covid-19 detected in most cases

LINK

网站地图
医院专题
制作工装
西服制作
工作服
工作服定做
T恤订做
定制服装
订制西装
工作服定做
拉力机
塑料专机
轴承硬度计
电子拉力试验机
北京中诺口腔医院
济南艾玛妇产医院
北京希玛林顺潮眼科医院
弹簧试验机
单纯疱疹病毒性巩膜炎治疗
冲击试验机
制作西装
医院动态
淄博正规的男科医院排名
婚姻律师
泉州皮肤病医院
家庭常备药
枣庄男科医院
遵义妇科医院
安顺癫痫医院
蜀山尖锐湿疣医院
上海离婚律师咨询电话
离婚请律师费
北京看耳鸣哪里好
成都性病医院预约挂号
贵阳哪家医院治疗输卵管堵塞专业
天津狂躁症治疗医院
东莞看抑郁症科哪家医院专业
海口心理科治疗医院
绍兴看精神科医院哪家好
长沙治疗甲状腺肿大医院
沈阳甲状腺肿大治疗医院
金华风湿医院
依兰琳卡
工作服门户
泰安男科
成都皮肤科医院哪家好
宁波不孕不育医院
找医院
NewsTop
Article SiteMap
Column SiteMap

Copyright © 2011 JIN SHI