Manufacturing technology and characteristics of plum blossom elastic coupling

Hengli Transmission Machinery introduces you the production process of plum coupling:

The plum blossom coupling is processed by machining methods such as turning, milling, and broaching, and then undergoes overall heat treatment.With sufficient mechanical strength, there is also a claw plate on the market that is a casting, which can be used in large quantities

High-volume production, and eliminates processing losses.So the price is much lower than machining. But the performance of castings is not very good.Try not to use it in some important occasions.And the claws of the casting are prone to tooth punching (claws falling off) at high speed or high load.

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.

Elastomers are generally composed of engineering plastics or rubber.The life of the coupling is the life of the elastomer.Since the elastomer is under pressure, it is not easy to be pulled.Generally, the life of the elastic body is 10 years. Because the elastic body has the function of buffering and damping, it is used more in the occasion of strong vibration.The performance temperature of the elastomer determines the operating temperature of the coupling, which is generally -35 to +80 degrees.

Features and characteristics of plum coupling:

The plum blossom flexible coupling is suitable for connecting two coaxial transmission shafts, with compensation for the relative deviation of the two shafts, and cushioning performance; the working temperature is -35℃~+80℃, and the transmission nominal torque is 16-25000N. m, allowable speed is 10900-1900r/min, shaft hole diameter range: 14-140mm, shaft hole length is 42-252mm, shaft hole length is 42-252mm!

The plum blossom coupling has a simple structure, does not require lubrication, is convenient for maintenance, easy for inspection, maintenance-free, and can run continuously for a long time.Polyurethane elastic elements are resistant to oil, have large carrying capacity, long service life and strong performance.Work stably, with good vibration damping, buffering and electrical insulation properties.It has large axial, radial and angular compensation capabilities.The structure is simple, the radial dimension is small, the weight is light, and the moment of inertia is small. It is suitable for medium and high speed occasions.

Structural features:

XNUMX. Intermediate elastomer connection

XNUMX. Absorb vibration, compensate radial, angular and axial deviation

XNUMX. Oil resistance and electrical insulation

Four, clockwise and counterclockwise rotation characteristics are the same

Five, positioning screw fixation

   Coupling manufacturer Hengli Lip Motion Machinery teaches you the correct installation skills of plum blossom couplings. Plum blossom couplings are more and more widely used, but many users are not very concerned about the details of installing plum blossom couplings. Give you a brief introduction:

10. Before installation, first check whether 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 30-XNUMXmm.

120. In order to facilitate the installation, try to put the two half couplings in the 150-3 incubator or oil tank for preheating, so that the inner hole size increases and it is easy to install.After installation, the shaft head should not protrude from the end face of the half coupling, it is better to be flush.Detect the distance between the two halves of the coupling: take the average of the 4--0 readings 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. The error is controlled within the range of 0.4-XNUMXmm.

250. Alignment: use a dial indicator to detect the run-out of the flange end and outer circle of the two halves of the coupling. When the outer circle of the flange is less than 0.05mm, the run-out value should not be greater than 250mm; when the outer circle of the flange is greater than 0.08mm , The jitter value should not be greater than XNUMX.

XNUMX. Install the bolts: insert the bolts from the outside of the small hole of 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 dismantled and replaced without damaging the shaft and half coupling, it is better to rotate freely after installation.

V. Instructions for operators: Before starting the equipment, check whether the nut of the torx coupling is loose or falling off, and if necessary, tighten the nut with a wrench in time.