Snake Spring Is a component of the snake spring coupling, also belongs to the snake spring coupling accessories.JS and JSM,JSS,JSD,JSP snake spring coupling accessories.
Characteristics:
The is also called the coupler spring.It belongs to a special type spring. It is made of a snake shaped steel strip with constant elasticity,and the surface is all sprayed with rust prevention treatment.Serpentine spring for the transfer of torque and buffer in the mechanical drive system. It has been widely used in metallurgy,lifting,transportation,mining,petroleum engineering. shipbuilding,coal,rubber,shipbuilding and port machinery lifting equipment.
Due to the contact between the spring plate and the tooth arc surface. The coupling can get large flexibility.It can be installed at the same time with radial,angular,and axial deviations.
The heat treatment process of American Standard snake spring:
1:the first quenching,tempering:the first tempering and tempering of the snake type spring is to adjust the structure of the steel plate.
The tempering parts should be cleaned,skimmed,sandblasting. And coated with protective coatings on the surface of the parts and samples.The tempering temperature is 720 C 10 C. the heat preservation is 60min. The air is cold,and the hardness is HRC26.
2:Intermediate annealing:the serpentine spring is first annealed for intermediate annealing. Before the intermediate annealing,the protective coating should be applied before coating. After annealing,the residual iron coating can be removed by slight sand blasting. And then the final shape will be formed.
3:The second quenching and tempering:the purpose of second quenching and tempering. Is to shape the final performance of the parts. After the final forming. the steel wire is bound up and heated and then cooled through the fully deoxidized salt bath.
4:the last tempering:after testing hardness is qualified. The parts are processed by sandblasting,and then pre treated. The pressure is measured to 55mm+1mm at the actual measurement position. 30~40h is maintained,and then the final tempering is carried out.