NGCLZ type with brake wheel

NGCLZ type drum gear coupling with brake wheel (JB/ZQ4644-97)

      The high-torque drum gear coupling has good impact bearing performance, but the tooth surface contact stress and tooth root bending fatigue strength require high requirements. If we adopt special structure, special materials, and special processes, then the coupling can meet Requirements for diameter pipe rolling mills.With the development of China’s economy, the demand for large-diameter pipe rolling mills has increased, and the requirements for couplings used in the main drive have become higher and higher. Couplings that meet this requirement include cross universal couplings and large torque drums. Gear couplings, of which the torque of the cross universal coupling can be reached, but the impact bearing performance is poor and the life is short, which is a big disadvantage; the current standard couplings used in domestic rolling mills cannot meet the requirements. Only 1/2 to 1/3 of the required transfer torque can be met by professional foreign coupling manufacturers. However, due to its special technology and the difficulty of manufacturing, it is extremely expensive.A pipe rolling mill requires about 10 sets, and the cost of outsourcing spare parts is very high.The various drum gear couplings developed by Tianshuo Coupling Factory according to customer needs have been able to meet the needs of various domestic manufacturers.The so-called drum tooth is to make the outer tooth into a spherical surface, the center of the spherical surface is on the gear axis, and the tooth side clearance is larger than that of ordinary gears. The drum tooth coupling can allow larger angular displacement (compared to the straight tooth coupling) , It can improve the contact conditions of the teeth, increase the torque transmission ability, and prolong the service life.The contact state along the tooth width when there is angular displacement.It has the ability to compensate for axis deviation in radial, axial and angular directions, and has the advantages of compact structure, small turning radius, large carrying capacity, high transmission efficiency, low noise and long maintenance period. It is especially suitable for low-speed and heavy-duty conditions, such as Shaft drive drum gear couplings in metallurgy, mining, lifting and transportation industries, and also suitable for petroleum, chemical, general machinery and other machinery are rigid-flexible couplings. Gear couplings are determined by the number of teeth It is composed of the same internal gear ring and flange half coupling with external teeth.The external teeth are divided into two types of tooth shapes: straight teeth and drum teeth. When the gear coupling is working, the two shafts produce relative angular displacement. Power consumption, therefore, gear couplings need to work in a good and sealed state.Gear couplings have small radial dimensions and large load-bearing capacity. They are often used for shafting transmissions under low-speed and heavy-duty conditions. High-precision and dynamically balanced gear couplings can be used for high-speed transmissions, such as gas turbine shafting. transmission.

Basic parameters and main dimensions of NGCLZ drum gear coupling with brake wheel