Rotary machinery dynamic balance quick weight-countering adjustment device and method

A technology of rotating machinery and adjusting devices, which is applied in static/dynamic balance testing, measuring devices, testing of machine/structural components, etc. It can solve the problems of heavy workload of on-site operators, cumbersome on-site safety measures, cumbersome and complicated operation procedures, etc. problems, to achieve the effect of saving dynamic balance time, facilitating adjustment and calculation, and improving dynamic balance accuracy
CN106768643AActive Publication Date: 2017-05-31STATE GRID CORP OF CHINA +2
7 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2017-05-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention discloses a rotary machinery dynamic balance quick weight-countering adjustment device. The device comprises a balance disc and at least one pair of weight-countering adjusting components mounted on the balance disc, wherein the weight-countering adjusting components are distributed at equal intervals along the radial direction of the disc surface of the balance disc. According to the rotary machinery dynamic balance quick weight-countering adjustment device of the invention, after weight-countering mass, a weight-countering position and a weight-countering angle are obtained through a traditional dynamic balance algorithm, counterweights are not needed to be temporarily processed on a site, operation such as welding the counterweights is not required, and therefore, field dynamic balance time can be greatly decreased; as for field dynamic balance according to which a weight-countering position is provided with a cylinder or a shaft sleeve, it only needs to reserve adjustment holes, and a special wrench can be adopted to conveniently and fast adjust the weight-countering adjustment device of the invention through the adjustment holes, and therefore, field workload can be greatly decreased; and since the adjustment of the positions of the counterweights can be carried out through screw rods, and the positions of the counterweights can be adjusted very precisely, and the precision of dynamic balance is improved. The weight-countering adjustment algorithm of the invention is easy to understand and can facilitate field personnel to carry out adjustment and calculation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to a fast adjusting device for counterweight, in particular to a fast adjusting device and method for dynamic balance of rotating machinery. Background technique

[0002] When the center of gravity of the rotor of a rotating machine does not coincide with the center of rotation, an unbalanced force will be generated in the rotating state, and the rotor will vibrate under the action of the unbalanced force. At high speeds, even if the mass with a small value is eccentric, it will generate a large centrifugal force and cause a large vibration. Unbalance is a common cause of failure of rotating machinery, accounting for more than 75% of the total number of failures. There are many factors that cause rotor imbalance, such as asymmetric rotor structure, raw material defects, manufacturing and installation errors, and thermal deformation. It can be said that dynamic balance work runs through the entire stages of rotating machinery manufact...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More