The efficiency of adjusting bolt and nut are changed is improved the root that rubs lead and defend

The utility model provides an efficiency of adjusting bolt and nut are changed is improved the morgan lead and defend, adjusting bolt and nut on includes the box and locates the box, symmetrical rigid coupling is led and is defended the support arm in the box, and every is led the back tip of defending the support arm and all is provided with a deflector roll, and every is led to defend before the support arm and offers an open slot on the inboard box of tip respectively, correspond on the open slot and installed said nut, every nut corresponds the spiro union has the one said adjusting bolt, said adjusting bolt's terminal support in corresponding lead the inside wall of defending the support arm on, also correspond on every open slot and be equipped with one with the fixed gland of holding of pressing of above-mentioned nut, the gland detachably be fixed in on the box. The morgan of the structure is led and is defended, and when carrying out the change of adjusting bolt and nut, the gland is dismantled to the only need, can pound out adjusting bolt and nut, need not to dismantle to lead to defend the support arm, and it is convenient very fast to change, has reduced the individual maintenance duration who defends that leads for the production arrangements personnel can deal with and lead the maintenance work of defending in a large number, have improved production efficiency.