After the overhaul and medium repair of the crusher , the no-load test time is generally 2~6h, and the time can also be determined according to the specific situation. Before the test, if the crane is used to rotate the eccentric shaft for one week, it is determined that there is no resistance before driving. No-load driving should meet the following requirements:
1. Start and stop according to the startup procedure. The interlocking system of the electrical part should meet the maintenance requirements;
2. The fasteners should be firm and free of looseness;
3. The lubrication points are normal and there is no oil leakage;
4, the bearing temperature rise should not exceed 30 ° C;
5. The flywheel rotates smoothly;
6. All adjustment mechanisms are flexible and reach the specified adjustment range.
After the no-load test is passed, the load test should be carried out. Load test time, usually 2 to 3 days and nights. The load test vehicle meets the following requirements:
1. The crusher must not have periodic and significant impact sounds;
2. The bearing temperature rise must not exceed 40 °C;
3. The particle size of the crushed product, that is, the gap of the discharge port should meet the requirements.
JXHS series Junction Box advanced technology during production, stresses the details during design, implements design standard during processing, and has high consistence of product quality. It has various features such as strong damp proof, anti-corrosion and anti-electromagnetic capacities and high adjustment accuracy, and is suitable for various adverse environments. Its main advantages include:
The product uses own mold to make technologic design, the housing uses aluminum and silicon alloy and upper protrusion and lower sinking structure is used so as to ensure good sealing performance; protective grade reaches IP 68.
Main parts are imported, wiring bar is welded with precise anti-surge electronic components, which can prevent Load Cell damage caused by lightning and power grid surge voltage.
Whole device uses stainless steel grounding bolts to ensure reliable grounding during operation.
Assembly of junction box uses not-loose screws so as to avoid loss during load cell wring.
Wiring board uses combined screws for assembly, which are convenient for removal.
In order to ensure protective effect, force and diameter of tightening parts have introduction.
Electrical Junction Box,Normal Junction Box,8-Wire Normal Junction Box,Normal Analogue Junction Box
SHANDONG JINZHONG SCIENCE & TECHNOLOGY GROUP COMPANY LIMITED , https://www.chinagoldbell.com