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  • Introduction to the difference between rigid coupling and elastic coupling

    Time: 2015-12-04 09:41 Author: XINLAN Coupling Click:
    The connection with bolts and short pipes without elasticity is a rigid coupling, and vice versa, it is an elastic coupling.Rigid couplings are couplings that have high hardness and will not deform during operation. Rigid couplings are not allowed to have misalignment.elasticity

    Use bolts and short pipes to connect with no elasticity as rigidCoupling, On the contrary, it is an elastic coupling.Rigid couplings are couplings that have high hardness and will not deform during operation. Rigid couplings are not allowed to have misalignment.An elastic coupling refers to a coupling that has a high degree of flexibility and is allowed to deform during operation. Connecting the rotating shafts on both sides of the elastic coupling allows a certain amount of misalignment to occur.

    Rigid couplings are characterized by light weight, ultra-low inertia and high sensitivity; maintenance-free, super oil and corrosion resistance.Rigid couplings are divided into flange couplings, radial key flange couplings, sleeve couplings, clamp couplings and parallel shaft couplings
    Botou XINLAN Coupling Co., Ltd. reminds customers that the flange coupling is a coupling that uses bolts to connect the flanges of the two halves of the coupling to realize the two-axis connection.
    Radial key flange coupling: A coupling that uses radial keys and ordinary bolts to connect two halves of the coupling
    Sleeve coupling: a coupling that uses a common sleeve to connect two shafts in a certain way
    Clamping housing coupling: a coupling that uses two axially split clamping housings to be clamped in a certain way to achieve two-axis connection
    Parallel shaft coupling: a coupling that uses an intermediate disk to pass through a pin to realize the connection of two parallel shafts
    Comprehensive mechanical propertiesedit
    The heating temperature of rigid coupling is usually 560~600℃, and the hardness requirement is HRC22~34.Because the purpose of quenching and tempering is to obtain comprehensive mechanical properties, the hardness range is relatively wide.However, if the drawings have hardness requirements, the tempering temperature must be adjusted according to the drawings to ensure the hardness.For example, some shaft parts require high strength, so the hardness requirements are high; and some gears and shaft parts with keyways need to be milled and inserted after quenching and tempering, so the hardness requirements are lower.
    Regarding the tempering and holding time, it depends on the hardness requirements and the size of the workpiece. We believe that the hardness after tempering depends on the tempering temperature, and has little to do with the tempering time, but it must be back through. Generally, the tempering and holding time of the workpiece More than one hour.
    Cr can increase the hardenability of rigid couplings, improve the strength and tempering stability of steel, and has excellent mechanical properties.Cr steel should be used for parts with large cross-sectional size or important quenched and tempered workpieces.But Cr steel has the second type of temper brittleness.From the perspective of foreign development trends, in order to improve production efficiency, the new generation of CNC machine tools are developing in the direction of ultra-high speed, adopting new functional components (electric spindle, linear motor, etc.) to achieve ultra-high-speed processing.
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