The design of the coupling factory considers the axial displacement between the two to be connected, and its value should be greater than 6mm. When installing the coupling, reserve a compensation amount in the direction of thermal expansion. The structure of the gear coupling without spacer should allow the gear sleeve to make an appropriate amount of axial movement, so that the internal and external teeth can be separated from the mode, so as to check the working condition of the gear teeth and do not need to disassemble the coupling during equipment maintenance. The coupling structure should ensure that all parts are aligned. The mating inner and outer teeth should be centered by the tooth top. In order to reduce potential imbalances, tooth circumferential backlash.

The coupling seller shall state the required bolt tightening torque value. The vertical flange of the hub and the spacer shall adopt bolts for reaming holes and self-locking nuts, and the hole size tolerance zone is H8. The bolts should be limited to the mass range to avoid adverse effects on the balance of the coupling during interchange. When the buyer requires electrical insulation of the coupling, the coupling with spacers should be selected, and there should be electrical insulation on the flange joint surface and the bolt position.

The vertical method joint surface of the coupling parts has a tolerance level of 6 for the end face of the rotation center, and a tolerance level of 7 for the other end faces; the radial runout tolerance of the mating surface and the guide surface of the rotation center is 6 Grade; the radial runout tolerance grade of other cylindrical surfaces is grade 7; the coaxiality tolerance grade of the mating surface and the guiding surface of the rotation center is grade 5. Flexible coupling

Coupling heat treatment is divided into preparation heat treatment (or pre-heat treatment) and final heat treatment (or post heat treatment). In modern industrial production, heat treatment of couplings has become an important technical regulation. This is due to the excellent mechanical functions of steel and certain alloys—high hardness, strength, elasticity, and wear resistance. In addition to obtaining the required chemical composition during smelting, it must be obtained through heat treatment. Therefore, in order to achieve technical The above requirement is that we need to heat-treat the coupling during the production of the coupling.

The heat treatment of the coupling is an operation technology that puts the metal or alloy in the solid range, through the organic cooperation of family, heat preservation, and cooling, so that the metal or alloy changes the internal arrangement to obtain the required function. The heat treatment of the coupling is modern machinery In the industrial and metallurgical industries, improving product quality and extending the service life of machine parts are indispensable.