Introduction:

Standard coupling should be based on the use of requirements and working conditions, drum gear coupling, such as bearing capacity, speed, two axis relative displacement, cushioning vibration absorption and installation, maintenance of vulnerable drum gear coupling comprehensive analysis to determine. During assembly, remove burrs and clean all parts; When assembling, it is necessary to ensure that the center line of the middle two welded fork bearing holes is on the same plane, and the allowable difference shall not exceed 1°. The spline part should slide freely and the joint should rotate flexibly; Clean the surface, in addition to the flange end face, the end key coated with anti-rust grease, the rest of the brush anti-rust primer, and then spray paint (do not brush paint). Regular lubrication, oil injection is recommended once a week, once a day under high temperature.

Points for attention in the use of coupling:

1, the coupling is not allowed to exceed the specified axis line skew and radial displacement, so as not to affect its transmission performance.

2, after the universal coupling is installed, the normal operation of a class, must check all fastening screws, such as loose, must be tightened again with the specified tightening torque, so repeated several classes, to ensure that not loose.

3, universal coupling sliding surface, cross head, bearings, etc., must ensure lubrication, generally with 2# industrial lithium base grease or 2# calcium molybdenum disulfide grease, in the general conditions of continuous operation 500 hours to refuel once, intermittent operation for 2 months to refuel once, if the high temperature conditions must work once a week, refueling the bearing end oil hole screw off, Fill with high pressure oil gun until overflow.

4, coupling daily maintenance, such as indentation and other normal wear phenomenon, should be replaced in time; The coupling is not allowed to have cracks, such as cracks need to be replaced (can be knocked with a small hammer, according to the sound of judgment); In the maintenance of disassembly, the cross shaft will be turned 180 degrees, in order to achieve the journal force alternate use.

5, gear coupling tooth width contact length shall not be less than 70%; Its axial channeling momentum shall not exceed 5mm.

6, gear coupling tooth thickness wear, lifting mechanism more than 15% of the original tooth thickness, more than 25% of the operating mechanism should be scrapped, broken teeth should also be scrapped.

7, pin coupling elastic ring, gear coupling seal ring, if there is damage aging, should pay attention to timely replacement.

8, in the work operation, should often observe whether the universal coupling abnormal radial swing and bearing heating phenomenon, found that these phenomena must be timely maintenance.

Application of coupling:

Coupling in practical application can be divided into heavy, medium, small and light according to the size of the torque delivered. Heavy universal coupling is often used in metallurgical machinery, heavy machinery, petroleum machinery, engineering machinery, lifting machinery. Medium and light universal couplings are often used in automobiles, machine tools and other vehicles and light industrial machinery. Small universal coupling is mainly used to transfer motion, generally used in precision machinery and control mechanisms.