WZL Internal Spline Drum Coupling

WZL Drum Coupling is a spherical hinged coupling. It has a connecting flange with an inner spherical surface, a spherical semi-coupling sleeve with an outer spherical surface, a special transmission key, an inner and outer limit cover, etc. The internal control generally adopts the splined sleeve design, which transmits torque through a specially designed key bar and can withstand large torque and radial load. The maximum angular displacement compensation can reach 3°, with a life indicator and safe and reliable structure.

The WZL drum coupling is a specially designed coupling primarily used for connecting the reducer output shaft of the lifting mechanism in lifting equipment with the steel wire rope drum. It is also suitable for other similar mechanical equipment transmissions that require torque transmission and radial load bearing.

The WZL barrel coupling is mainly composed of the following parts:

• Outer gear sleeve with drum-shaped teeth: used for connecting with the output shaft of the reducer to transmit driving power.
  

• Outer sleeve with connecting flange and inner gear ring: It is connected to the drum and forms a drum-shaped gear coupling with the outer gear shaft sleeve.
  

• Load-bearing ring with outer spherical surface: It forms a contact pair with the inner load-bearing surface of the outer sleeve, constituting an automatic aligning spherical bearing used to bear radial loads.
  

• End cap and sealing ring: used to prevent lubricating grease leakage and ensure that the coupling operates under good lubrication conditions.

In addition, the WZL drum coupling is equipped with a positioning wear indicator, lubrication oil holes, and vent holes, etc., for ease of use and maintenance.

The working principle of the WZL drum coupling is relatively simple. When the output shaft of the reducer rotates, the outer toothed shaft sleeve rotates accordingly and engages with the inner toothed ring of the outer sleeve through the drum-shaped teeth, transmitting torque to the drum. At the same time, the spherical bearing formed by the outer spherical surface of the load-bearing ring and the inner load-bearing surface of the outer sleeve can withstand radial loads, ensuring the stability and reliability of the coupling during operation.

The WZL barrel coupling possesses the following characteristics:

• Compact structure: enables the coupling to efficiently transmit torque and withstand radial loads within a limited space.
  

• Stable and reliable operation: The design of the drum-shaped gear coupling and spherical bearing enables the coupling to withstand large radial loads and axial displacements, while maintaining high transmission accuracy.
  

• Easy to maintain: Equipped with wear indicators, lubrication holes, and vent holes, it is convenient for users to conduct inspections, lubrication, and maintenance during use.

The WZL drum coupling is widely used in various lifting equipment, hoisting mechanisms, and other mechanical devices that require torque transmission and radial load bearing. Its excellent performance and reliable quality make it an indispensable transmission component in these devices.

The WZL barrel coupling offers a wide range of models and specifications to cater to the diverse needs of various users. Common models include the WZL01, WZL02, WZL03, and up to the WZL18 series. Each model boasts specific parameters such as nominal torque, transmission torque, and working level. Users can select the appropriate model and specification based on the specific requirements and working environment of their equipment.

The WZL drum coupling is a transmission component with excellent performance and reliable quality, widely used in various lifting and mechanical equipment. Its compact structure, stable and reliable operation, and ease of maintenance make it an indispensable part of these devices.