Causes and Solutions of Damage of Quick Joints on Rebar Rolling Mill
Quick joints are an important part of the rebar rolling mill; they are mainly used to connect the two ends of rebar. In the long-term operation of rebar rolling mill production line, if the quick joint is damaged, it will seriously affect the production efficiency. Generally speaking, there are three main causes of quick joint breakage in rebar rolling mill.
1. Driver acceleration
In the process of driving the rebar rolling mill, sometimes the driver will speed up, this is a very important factor leading to the unbalanced operation of the equipment, accelerated driving usually leads to greater force on the quick connection between rebar, resulting in the breakage of the quick connection. This kind of situation usually occurs during the changing of the steel bar, which sometimes leads to problems such as lack of coordination between the driving force and the speed of the motor due to driver negligence when accelerating.
2. Unsuitable joint specifications
If the specifications of the quick joint of the rebar rolling mill do not meet the actual demand of the production line, it is prone to breakage. Generally speaking, the reasonable steel bar specification should be selected according to the rolling speed of the rebar rolling mill. If the gap between the joint and the steel bar is too small, or if the wrong joint is selected, it will cause the joint to bear excessive force and cause breaking of the joint.
3. Uneven lubrication
In the process of operation of rebar rolling mill, improper lubrication or uneven lubrication of the splicing part will cause excessive force on the joint, resulting in breakage. Generally, the oil on the joint should be added in time, and the oil should be evenly distributed throughout the joint surface. If there is too little or too much oil, it will easily cause the joint to break. If possible, it is best to replace the oil regularly to ensure its consistency and quality.
In view of the causes of quick joint breakage in rebar rolling mill, the following measures can be taken to prevent joint breakage:
1. Adjust the acceleration
In the process of driving the rebar rolling mill, any acceleration or deceleration should be synchronized with the rolling speed of the steel bar. Drivers should pay attention to the coordination of the speed and pay attention to the balance of the force on the quick joint.
2. Choose a suitable joint
The joint of rebar rolling mill should be in accordance with the actual design specification, so as to prevent excessive force on the joint due to improper specification. It is important to ensure the size and shape of the joint and the steel bar match.
3. Reasonable lubrication
In the process of application of quick joint, timely and reasonable lubrication should be done. It is important to pay attention to the quantity of oil added and pay attention to the uniform distribution of oil. Regularly replace the oil, to ensure the quality and level of lubrication.
In conclusion, quick joints are an important part of rebar rolling mill. In order to prevent the breakage of quick joints, it is important to pay attention to the uniformity of the acceleration and speed of the rebar rolling machine, select the appropriate specification and reasonable lubrication. With these measures, the service life of quick joints in production line can be extended.
