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Plum blossom coupling characteristics and installation skills

Author: Ever-Power Coupling Release Date: 2015-07-26 16:59 Click:
The plum-shaped elastic coupling gets its name because of its elastomer plum shape. According to the different elastomer materials, it can be divided into: rubber-shaped plum coupling, polyurethane plum coupling; the usually adopted elastomer is polyurethane.

  The plum-shaped elastic coupling gets its name because of its elastomer plum shape. According to the different elastomer materials, it can be divided into: rubber-shaped plum coupling and polyurethane plum coupling; the usually adopted elastomer is polyurethane.According to its performance and use, it can be divided into: plum-shaped elastic coupling, plum-shaped coupling for servo motor, clamping type plum-shaped coupling, etc.There are many types to choose from, such as keyway type, clamping type, extended type, flange type and so on.
  The characteristics of plum-shaped elastic coupling are:
  1. Compact, no backlash, providing three kinds of elastomers with different hardness;
  2. Vibration can be absorbed, and radial and angular deviations can be compensated;
  3. Simple structure, convenient maintenance and easy inspection;
  4. Maintenance-free, oil-resistant and electrical insulation, working temperature 20℃-60℃;
  5. Plum blossom elastomer has four petals, six petals, eight petals and ten petals;
  6. The fixing methods include top wire, clamping and keyway fixing.
  Installation skills of plum coupling
  1. Before installation, check whether the two shafts of the prime mover and the working machine are concentric, whether there are wrapping paper and bumps on the surfaces of the two shafts, whether there are debris in the inner holes of the two half couplings of the plum coupling, and whether the edges of the inner holes are If there are bruises, the shaft and half coupling should be cleaned up, and the bruises should be treated with a fine file.Then check whether the inner hole diameter and length of the two half couplings are consistent with the diameter and shaft elongation of the prime mover and working machine.In general selection, it is better to make the length of the prime mover and the working machine end half coupling less than its shaft elongation 10-30mm.
  2. In order to facilitate the installation, it is better to put the two half couplings in the 120-150 incubator or oil tank for preheating, so that the inner hole size increases and it is easy to install.After installation, ensure that the shaft head cannot protrude from the end face of the half coupling, and it is better to be flush.Detect the distance between the two halves of the coupling: take the average of the readings of 3 to 4 points measured along the two inner sides of the flange of the half coupling, and the sum of the measured dimensions of the extension and the two diaphragm sets, two The error is controlled within the range of 0-0.4mm.
  3.找正:用百分表检测两半联轴节法兰盘端面和外圆跳动,当法兰盘外圆小于250mm时跳动值应不大于0.05mm;当法兰盘外圆大于250mm时,跳动值应不大于0.08。
  4. Install the bolts: insert the bolts from the outside of the small hole in the flange, pass through the outside of the large hole of the other flange, put on the buffer sleeve, elastic washer, twist the nut, and tighten the nut with a wrench.If the installation is unsuitable or if it is removed and replaced without damaging the shaft and the half coupling, it is better to rotate freely after installation.
  5. Instructions for the operator: Before starting the equipment, check whether the nut of the torx coupling is loose or falling off. If so, tighten the nut with a wrench in time.
 

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