Products display
If you are interested in our services or products, you can contact us directly, looking forward to working with you!
NJZ type low speed contact backstop is a new type of backstop device for belt conveyor, it is directly installed on the drive drum shaft extension or the reducer low speed shaft extension, has a strong anti-reverse ability, allowing the twist rejection usually can reach hundreds of thousands of N·m or more. The NJZ low speed contact backstop can effectively prevent the backward sliding accident caused by the gravity of the material when the large belt conveyor with full load suddenly stops running due to various reasons. And in the backstop state, the entire drive device is still in the unloading state, which not only does not lead to the maintenance and replacement of the motor, reducer and other drive components, but also can prevent the retrograde accident caused by the damage of the drive system, more safe and reliable, so it is a very ideal anti-reverse safety protection device for large belt conveyors. NJZ type low-speed contact backcheck device adopts array wedge blocks evenly arranged in the gap formed by the inner and outer rings, wedge blocks evenly distributed, the contact surface of the backcheck is large, and the backcheck is safer. Its internal use of thin oil lubrication, continuous normal operation of 3000 hours without oil replacement and maintenance, the backstop automatic inner cavity and working face to fully lubricate, reduce the friction coefficient, extend the service life of the backstop, the comprehensive mechanical properties are significantly improved.
■ Product introduction
NJZ type low speed contact backstop is a new type of backstop device for belt conveyor, it is directly installed on the drive drum shaft extension or the reducer low speed shaft extension, has a strong anti-reverse ability, allowing the twist rejection usually can reach hundreds of thousands of N·m or more. The NJZ low speed contact backstop can effectively prevent the backward sliding accident caused by the gravity of the material when the large belt conveyor with full load suddenly stops running due to various reasons. And in the backstop state, the entire drive device is still in the unloading state, which not only does not lead to the maintenance and replacement of the motor, reducer and other drive components, but also can prevent the retrograde accident caused by the damage of the drive system, more safe and reliable, so it is a very ideal anti-reverse safety protection device for large belt conveyors. NJZ type low-speed contact backcheck device adopts array wedge blocks evenly arranged in the gap formed by the inner and outer rings, wedge blocks evenly distributed, the contact surface of the backcheck is large, and the backcheck is safer. Its internal use of thin oil lubrication, continuous normal operation of 3000 hours without oil replacement and maintenance, the backstop automatic inner cavity and working face to fully lubricate, reduce the friction coefficient, extend the service life of the backstop, the comprehensive mechanical properties are significantly improved.
■ Scope of application
This product is suitable for large inclined belt conveyor, bucket elevator, scraper conveyor and other equipment with reverse demand.
■ Main technical features
Internal use of thin oil lubrication, lubrication more fully;
The seal adopts international imported brand, with multiple sealing structure, to achieve effective protection;
Long service life, low maintenance requirements;
The lever and the main body are designed separately. When the system needs to be reversed, it can be realized by simply removing the lever;
A unique torsion spring design is adopted to make each check wedge evenly stressed;
The core parts are manufactured with special technology to improve the wear resistance of the parts;
Certified by coal safety, can be used in coal mines and other explosive hazardous environment.
