Safe low-speed backstop device
NJZ (A) safety low-speed torque limiting backstop is a low-speed backstop device with overload automatic torque balancing
Advantage
1. When driven by multiple machines, it can achieve uniform backstop load of multiple backstops,
2. Prevent overloading and damage to individual backstops;
3. The safety type backstop model is much smaller than the traditional backstop model;
4. It can eliminate the rebound force of the tape, protect the drum and backstop, and prevent equipment from being impacted and damaged.
Overview
NJZ (A) contact safety torque limiting backstop (hereinafter referred to as safety backstop), combined with our years of backstop manufacturing design philosophy and experience, aims to address the current domestic and foreign backstop that cannot eliminate the impact of backstop torque or balance the backstop torque of multiple backstops, A safety type anti impact low speed backstop device developed for multi point or multi machine driven up conveyor belts due to a series of problems such as excessive selection. Installed on the low-speed shaft, when the belt conveyor stops with load, it can ensure that the backstop torque of the low-speed shaft is not overloaded, and achieve uniform distribution of backstop loads of multiple backstops.
Product Features
1. By setting the backstop torque, eliminate (absorb) the rebound force of the conveyor belt, protect the drum and backstop, and prevent equipment from being impacted and damaged.
2. Realize torque balance of multiple backstops to prevent local backstop or drum overload damage.
3. Realize the superposition of backstop torque, reduce the single backstop torque of backstop, and reduce costs.
Working principle
When the conveyor is stopped with load, the backstop part of the safety backstop quickly brakes, and its braking torque acts on the low-speed shaft through the torque limiting part of the safety backstop. When the braking torque is imbalanced and exceeds the rated torque of the safety type backstop, the torque limiting part will slowly and uniformly generate relative slip, and the braking torque will no longer rise and maintain near its limit torque setting value. When other safety type backstop reaches the set value and the sum of its limit torque backstop torque exceeds the sliding torque of the conveyor, the conveyor will stop rotating.
scope of application
To achieve uniform distribution of multiple backstop loads and ensure safe and reliable parking under any working condition, a feasible method for multi machine driven upward conveyor is to install NJZ (A) safety backstop on two or more low-speed shafts.
The single machine driven conveyor adopts NJZ (A) safety type backstop, which can eliminate the rebound force of the conveyor belt, protect the backstop and drum, and prevent them from being impacted and damaged.
Note: The torque adjusting screw has been adjusted before delivery, and no one is allowed to adjust the screw without our company's permission.
