Rokee® Customized GIICL4 Crown Gear Couplings for Customers, Rokee® is a well-known high-quality supplier of couplings and technical services in China.
The GIICL crown gear coupling belongs to the category of rigid flexible couplings, consisting of an inner ring gear and a flange half coupling with outer teeth. The GIICL coupling represents a technological upgrade of traditional spur gear couplings, solving the limitations of traditional transmission devices in terms of compensation capacity and load efficiency through a unique drum shaped tooth design.
There are two main types of structures included:
Type I: Adopting a separated sealed end design, allowing for large radial displacement (usually up to 0.4-6.3mm), suitable for Y, J1, Z1 type shaft extensions, and suitable for working conditions that require large compensation capabilities
Type II: Integral sealed end structure, with more compact size and smaller moment of inertia, suitable for Y and J1 shaft extensions, suitable for space limited and high dynamic response requirements
The core innovation of GIICL drum tooth coupling lies in the use of spherical drum tooth design for its outer teeth, which forms a sharp contrast with traditional straight teeth in terms of three-dimensional curved tooth shape. The spherical center of the drum shaped teeth is located on the gear axis, and through precise calculation of tooth flank clearance optimization (usually 30-50% larger than standard gears), a breakthrough improvement in transmission performance has been achieved.
The motion compensation mechanism manifests in three aspects:
Angular compensation: The allowable angular displacement is up to 1 ° 30 ′, which is 50% higher than that of a spur gear coupling. It can effectively absorb installation alignment errors and relative deflection during operation
Radial compensation: By utilizing the involute meshing characteristics of the drum teeth, a radial deviation of 0.2-6.3mm can be compensated (specific value depends on the model)
Axial compensation: The special tooth design allows for axial movement of ± 1- ± 8mm, adapting to thermal expansion of the shaft system
The optimization of mechanical properties is reflected in the distribution of contact stress. When there is angular displacement, the contact area of the drum shaped teeth gradually changes along the tooth width direction, avoiding the edge compression phenomenon at the end of the straight tooth coupling. Finite element analysis shows that this design can reduce tooth contact stress by 20-35% and improve load distribution uniformity by over 40%.
The selection factors need to comprehensively consider the following parameters:
Torque requirement: Calculate the working torque T=9550 × P/n (P power kW, n speed r/min)
Shaft diameter matching: Ensure that the coupling aperture matches the shaft diameter tolerance (usually H7/js6)
Speed range: not exceeding 80% of the allowable speed
Compensation requirement: Determine the required angular/radial compensation amount based on the equipment alignment accuracy
Environmental conditions: Consider factors such as temperature, humidity, dust, etc
The main application areas include:
Metallurgical equipment: continuous rolling mill, coiling machine, straightening machine, etc., capable of withstanding impact loads and thermal deformation
Mining machinery: ball mills, crushers, elevators, etc., suitable for harsh working conditions
Lifting and transportation: port cranes, stacker reclaimers, etc., requiring high reliability
Energy equipment: steam turbines, water turbines, wind turbines, etc., requiring high-precision transmission
Shipbuilding industry: propulsion systems, deck machinery, etc., to cope with corrosive environments
As a key component in the industrial transmission field, the GIICL crown gear coupling's technological progress will continue to provide strong support for equipment upgrades and efficiency improvements in various industries, playing a more important role in the development trends of "intelligent manufacturing" and "green manufacturing".
Over the years, with excellent quality, we have been continuously providing many coupling products of various categories and uses complying with multiple standards and a full range of services, from the product selection to final installation and operation, for the industry fields of ferrous metallurgy, nuclear power, gas turbine, wind power, ropeway construction, lifting transportation, general equipment, etc. We strictly comply with quality system requirements and implement the whole process control to become a reliable and trustworthy partner of customers.
URL: https://m.rokee.com/coupling-cases/giicl4-crown-gear-couplings.html