Analysis of characteristics of elastic pin coupling

Published: 2019-12-12

Elastic pin toothCouplingIt is a pin made of several non-metal elastic materials and placed in two and a half pairs of flange holes.The coupling is connected by a pin.TheCouplingThe structure is simple, the manufacture is convenient, and the installation, disassembly and replacement of elastic elements are convenient, and there is no need to move the two half couplings.

The material of the elastic element (column pin) is generally nylon, which has the ability of micro-compensation for the two-axis offset, shearing when the elastic part is working, and poor workability.It is only suitable for medium-speed transmission shafts with very low requirements, and is not suitable for workability requirements.For example, the drive shaft of the lifting mechanism of a hoisting machine cannot be selected, and it cannot be used for a drive shaft with low speed, heavy load and strong shock and vibration.For working conditions with large radial angle deviation and low installation accuracy of the transmission shaft system, it is not suitable for selection, and it is an obsolete product.Elastic pinCouplingThe pin in the stud is in shearing and squeezing state when working, and its strength condition is to calculate the shear strength on the section of the elastic pin and the extrusion strength of the pin and pin control wall.

Elastic pin toothCouplingIt has the characteristics of elastic coupling and gear coupling.The coupling has the following characteristics:

The main findings are as follows:

(1) Under the same torque, the transmission torque is large, and the rotating diameter is smaller, smaller and lighter than the gear coupling, which can partially replace the gear coupling.

(2) With gearCouplingIn contrast, the structure is simple, the parts are few, the manufacturing is convenient, and the gear processing machine tool is not required.

(3) Because of its convenient maintenance and long service life, the nylon pin can be replaced by removing the gear plate.

(4) Nylon pin is a self-wetting material that does not require lubrication, which saves lubricating oil and purifies the working environment.

(5) Poor vibration reduction effect and high noise.

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