How to avoid accidents in the use of serpentine spring couplings?

The serpentine spring coupling embeds more than two half and thirty-six percent in the axial direction of the serpentine spring sheet.The serpentine spring leaf with trapezoidal section is made of high-quality spring steel, subjected to strict heat treatment and specially processed, and has good mechanical properties, so that the service life of the coupling is much longer than that of non-metal elastic element couplings such as elastic sleeve columns. Pins, nylon rod pin couplings have greatly increased.It is a new structure of metal.It relies on serpentine springs to transmit torque.The serpentine springs divided into one or several groups are embedded in the teeth on the flange of the two-part coupling to realize the coupling of the two halves of the coupling, in order to prevent the serpentine spring from being thrown out and To avoid dry friction between the serpentine spring and the tooth contact, it needs to be covered with a closed shell and filled with lubricating oil or grease.

The serpentine spring coupling is a relatively new shaft coupling transmission component in the field of global machinery today. The serpentine spring coupling is a universal shaft coupling transmission tool, which bears a large torque, and is suitable for heavy machinery and general mechanical occasions.

How to avoid accidents in the use of serpentine spring couplings?

(1) The serpentine spring coupling will inevitably have such problems and such problems during use. Among the possible problems, there are more vibrations, so the editor will explain to everyone how to solve this problem. , The advantages of this coupling are small radial size, large carrying capacity, long used for shaft transmission under low-speed and heavy-duty conditions, and the dynamically balanced gear coupling can be used for high-speed transmission, such as gas turbine Shafting transmission.

(2) The whole machine has few parts, small size and light weight. The spring leaf designed as a trapezoidal cross-section and the trapezoidal tooth groove are particularly convenient and close, so that the assembly, disassembly and maintenance are simpler than ordinary couplings.Since the angular compensation of drum gear couplings is greater than that of straight gear couplings, drum gear couplings are commonly used. Straight gear couplings are an obsolete product, and those who choose it should try not to use them.

(3) Measure the beating of the fan and the motor side journal without removing the serpentine spring coupling cover, then untie the serpentine spring coupling cover to measure the alignment of the two rotors, and then align the serpentine spring coupling cover. Remove the spring and measure the alignment of the two rotors.

(4) Since the spring leaf and the tooth arc surface are in point contact, the coupling can obtain greater flexibility.It can be installed to work normally under conditions of radial, angular and axial deviations at the same time.

(5) Through the above analysis, the causes of failure such as unbalanced mass of the fan impeller, unbalanced fan rotor, bearing damage and poor installation lubrication, and damage to the flow part of the fan have been eliminated.The vibration of the bearing at the drive end of the fan is greater than that of the non-drive end. The bearing vibration at the drive end of the fan is close to the motor drive end bearing in size but opposite in phase. The horizontal, vertical, and axial vibrations of each bearing are relatively large, and the double-frequency components in the frequency spectrum are more obvious Other phenomena indicate that the two fans may have the problem of misalignment between the fan rotor and the motor rotor.Fault confirmation and handling process The fault confirmation is determined after discussion, and the alignment of the fan rotor and the motor rotor is rechecked.

Diaphragm couplings have been commonly used in industrially developed countries around the world. my country has formulated machinery industry standards. The elastic deformation of the diaphragm compensates for the relative displacement of the two shafts connected. It is a high-performance metal elastic element. Sex coupling.The metal diaphragm does not need to be lubricated when it is used. It has a compact structure, light weight, long service life, no maintenance, no rotation gap, large eccentricity, and is not affected by temperature and oil pollution. It is easy to load and unload, and is acid-resistant and corrosion-resistant. Features.There are many types of stable couplings.Such as shear pin type, steel sand type, friction type, magnetic powder type and other couplings.

Since the diaphragm coupling can automatically cut off the connection of the shaft during operation, some stable couplings have the same functions as the stable clutch.Due to various reasons, the center of mass or inertial principal axis of the coupling does not coincide with the axis of rotation, and the phenomenon of unbalanced centrifugal inertial force, centrifugal inertial couple force and dynamic deflection (vibration shape) will occur during operation, which is called the unbalance of the rotor. Phenomenon, this imbalance phenomenon will inevitably cause the vibration of the shaft system, thereby affecting the normal operation and service life of the machine, so it needs to be paid attention to.

Therefore, compared with the gear coupling, the diaphragm coupling has no relative sliding, no lubrication, sealing, no noise, basically no maintenance, easy to manufacture, and can partially replace the gear coupling.It consists of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the sleeve with a pin and generally will not loosen or cause backlash between the diaphragm and the sleeve.Some manufacturers provide two diaphragms, and some provide three diaphragms, with one or two rigid elements in the middle, and the two sides are connected to the shaft sleeve.